Which of the atomic models represents the most reactive element?

A. Argon, because it has three energy levels with eight electrons in the third level.

B. Lithium, because it has two energy levels with one electron in the second level.

C. Aluminum, because it has five energy levels with two electrons in the third level.

D. Carbon, because it has two energy levels with four electrons in the second level.

Answers

Answer 1

The most reactive element is represented by the atomic model for lithium, which consists of two energy levels with an electron in the second level. So, the correct option is B.

What is Reactive element?

A reactive element is one that forms chemical bonds with other elements to obtain a stable electron configuration. Reactive elements are chemically unstable. The amount of valence electrons in an element's highest energy level determines how reactive it is.

The element with the fewest number of energy levels and most reactive valence electrons in the above example is lithium, which has only two energy levels and one electron in the second level. Lithium in this state has one valence electron, which makes it very reactive and predisposed to form bonds with other elements filling its outermost shell.

Therefore, the correct option is B.

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Related Questions

WILL GIVE BRAINLIEST!!!!

Use the drop-down menus below to identify the organ(s) that is/are responsible for each function of the excretory system.

produces feces

excretes sweat

converts poisonous substances to less toxic forms

excretes carbon dioxide and water

produces urine

Answers:
large intestine, skin, liver, lungs, kidney

Answers

Explanation:

large intestine, skin, liver, lungs, kidney

hope it is helpful to you

Answer:

1. Large intestine

2. Skin

3. Liver

4. Lungs

5. Kidney

Explanation:

Bc I said so

1.
According to the South Florida Water Management District, Florida's climate has a wet and a dry season. In any year, a drought can take place during the
Groughts?
A Droughts have no impact on Florida ecosystems,
B
Droughts improve the quality of soil and landscape conditions,
Droughts affect the water consumption needs of all types of organisms.
D.Droughts exist in areas where the amount of precipitation is above normal.

Answers

Answer:

droughts affect the water consumption needs of all types of organisms

Which of the following can NOT be cloned?
a. A dog
b. A rock
c. A bacterium
d. DNA

Answers

it’s either dog cause dna could be cloned

Question 3: Explain how you and your classmates are all the same at the DNA level and
what makes you look different.

Answers

Answer:

All human beings are 99.9 percent identical in their genetic makeup. Differences in the remaining 0.1 percent hold important clues about the causes of diseases

Explanation:

What part of Isaac Newton’s childhood led him to become so defensive and hostile toward any criticism of his work?

Answers

Answer: Issac became stubborn and defensive because of the fierce nature of siblings and commanding nature of his second father and mother. Due to the stubbornness of his family member he had to leave his study in early childhood and engage in farming which he left ultimately to pursue higher studies.

Explanation:

Issac became stubborn and defensive because of the fierce nature of siblings and commanding nature of his second father and mother. Due to the stubbornness of his family member he had to leave his study in early childhood and engage in farming which he left ultimately to pursue higher studies.

Which is not a way to test water quality?
a. Humidity
b. pH
c. Chlorine
d. Dissolved oxygen

Answers

I don’t knowwwwwwwwwwwwwww

If two species have similar DNA sequences, it would indicate that they
A. Have no evolutionary relationship
B. Share a common ancestor
C. Are not closely related
D. Will have similar fitness

Answers

Explanation:

90% sure its gonna be B lol

If the DNA sequences of two species are identical, this would indicate that they share a common ancestor. So, the correct option is B.

What is Ancestry?

An ancestor is also called forefather, fore-elder, or a forebear. It is defined as the parent of the parent or predecessor. An ancestor is any person from whom one is descended living in law, a person from whom property is inherited.

Ancestry links genetics and society in fundamental ways, while it has cultural, religious or political significance, and can play an important role in shaping personal and public identity.

Homologous can occur when different species have similar anatomy that is shared due to ancestry or shared due to similar selective pressures.

Thus, if the DNA sequences of two species are identical, this would indicate that they share a common ancestor. So, the correct option is B.

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Based on this cladogram, which statement best describes relationships among millipede onders?

F. Stemmlullda is more dosely related to Verochesa tran Peniciuata is to Merocheta.

G.Sprostreptida is more closely related to Glonenda than Sphaerctheriida is to Glomerida.

H. Polyzoniida is more closely related to Glomeridesmida than Spheeratheriida is to Glamandesmida

J. Merocheta is more closely related to Glomeridesmida than Glomerda is to Glamandesmida.

Answers

Answer:

From the cladogram, below statement is the best which describe the relationship which exist among the millipede onders are required.

O. H. Polyzoniida is more closely related to Glomeridesmida than Spheeratheriida is to Glamandesmida

Explanation:

Which of the following is a primary air pollutant?
smog
photochemical smog
ozone
carbon dioxide

Answers

Smogis correct ... ;))))))

Carbon monoxide is the primary air pollutant.

Primary air pollutants:

Pollutants which are formed and emitted directly from particular sources are Primary air pollutants.

Examples are particulates, carbon monoxide, nitrogen oxide, and sulfur oxide.

Secondary air pollutants:

Pollutants which are formed in the lower atmosphere by chemical reactions.

example : smog

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Draw a Punnett Square and demonstrate the parents
blood type of the child has AB

Answers

Answer and Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

helpppppp pleaseeeeeee

Answers

adaptations shouldn’t end up causing difficulties for the animal so that eliminates options A and D. Option B can be eliminated because a long beak more than likely wouldn’t help a bird hide from predators, if anything it could make it stand out more. So, the answer is C

A scientist wants to observe the structure that joins a cell of a neighboring cells. How should the scientist observe the detailed structure of the cell?

Answers

Answer:

The images obtained from the electron microscope provides key knowledge regarding the structural basis of cell function and various diseases associated with the cells. Thus, if a scientist desires to see the structure, which binds a cell with the adjacent cells, he or she should use an electron microscope.

Explanation:

please mark this answer as brainliest

Why humans need organs, like the liver and pancreas, but amoebas do not.

Answers

Answer:

They have no use for it, just like they dont have any type of respiratory organs like lungs.

Explanation:

In the case of nutrition and digestion they obtain food by capturing their prey with their pseudopodia. The food is internalized through a type of endocytosis known as phagocytosis. Nutrients are obtained as the enzymes digest the food inside the vacuole and when they are finished the food vacuole dissolves.

Humans need organs, like the liver and pancreas, but amoebas do not because human is a complex multicellular organism that necessarily requires a variety of organs in order to perform specific functions.

What do you mean by Organs?

Organs may be characterized as collections of tissues as a part of the body that performs a specific function. Some examples of organs may include the heart, the lungs, the kidneys, the stomach, etc.

Amoeba being unicellular organism has the capability to change their shape. They capture their food through pseudopodia and diffuse the substance easily through their single cells.

While on contrary, humans are more complex living organisms on this earth planet. So, they require a specific set of organs and organ systems in order to facilitate their survival.

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Which two inferences about the chipmunk population can be supported with the data gathered by the biologist?

Answers

Answer:

The amount of food in the area decreased, causing more chipmunks to

survive to reproductive age.

Explanation:

Hope this helps :)

Chipmunks in later generations showed greater genetic diversity than previous generations, allowing for a greater survival rate in later generations. Individual chipmunks changed their genetic makeup and became more successful in the environment. The correct options are R and S.

What is genetic diversity?

Genetic diversity refers to the total number of genetic traits that make up a species' genetic composition.

It varies greatly depending on the number of species present as well as across species, and it can be linked to a species' longevity.

DNA contains all the biological information and variety required to sustain life on our planet.

Genetic variety is referred to as this. It improves a species' and population's resistance to maladies, pests, climatic changes, and other pressures.

According to the findings, Chipmunks had a higher genetic variety in later generations than in earlier generations, which allowed for a higher survival rate in later generations. Individual chipmunks altered their genetic make-up and improved their chances of survival.

Thus, the correct options are R and S.

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Your question seems incomplete, the probable complete question is:

A biologist studies a population of chipmunks. Some of the biologist’s

findings are shown.

Years 1 – 20:

• The population remains below

125.

• Less than half of newborn

chipmunks survive to adulthood.

• Competition for food and

resources limits population

growth.

Year 21 and beyond:

• Ninety percent of newborn

chipmunks survive to adulthood.

• The population increases to over

200 chipmunks.

M. The amount of food in the area decreased, causing more chipmunks to

survive to reproductive age.

P. Chipmunks in later generations showed greater genetic diversity than

previous generations, allowing for a greater survival rate in later generations.

R. Chipmunks migrated from one country to another country to increase the

number of chipmunks in the studied area.

S. Individual chipmunks changed their genetic makeup and became more

successful in the environment.

T. The number of predators in the area decreased, so more chipmunks were

able to survive.

What does the phrase "water loss control" mean?
Read the excerpt from "Water Efficiency Strategies."
Water Loss Control—National studies indicate that, on
average, 14 percent of the water treated by water systems is lost
to leaks. Some water systems have reported water losses
exceeding 60 percent. Accounting for water and minimizing
water loss are critical functions for any water utility that wants to
be sustainable
o preventing water from being wasted due to leaks
O limiting the number of household sinks and toilets
O limiting use of dishwashers and washing machines
O preventing pipes from rusting and growing mold

Answers

Answer: Answer: preventing water from being wasted due to leaks

Explanation:

Water loss control has to do with the efforts which involves managing leakage to low levels.

From the excerpt, we can infer from the information given that 14 percent of the water treated by water systems is lost due to leaks. Therefore, the phrase "water loss control" simply means how water loss will be minimize.

The phrase "water loss control" means preventing water from being wasted due to leaks.

What is Water loss control ?

A water loss control program helps to identify real or physical losses of water from the water system and. apparent losses, the water that is consumed but not accounted for.

Water loss control includes

utility efforts to manage leakage to economically low levels, andreducing metering and billing errors such that reliable measures of customer consumption are attained and sufficient revenue is garnered by the water utility.

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why is the luangwa valley sparsely populated

Answers

Answer: The Luangwa River is one of the major tributaries of the Zambezi River, and one of the four biggest rivers of Zambia. The river generally floods in the rainy season (December to March) and then falls considerably in the dry season.Aug 15, 2019

Explanation:

Which example is classified as a body fossil?

Answers

Answer:

The fossils of bones, teeth, and shells are called body fossils.

Explanation:

Which of Newton's laws is being described? The greater the mass the more inertia it has. F=ma A. Law of inertia / Newton's 1st law B. Law of acceleration /Newton's 2nd law C. Action • reaction/ Newton's 3rd law D. None of the above

Answers

Answer:

The Law of Motion

ANSWER PLS DONT PUT LINKS

Answers

Answer: C!! :)

Explanation:

C tell me if I’m right

*10 POINTS PLS HELPPP

Answers

Answer:

Explanation:

You got it right! It is in fact A.

Name two producers in the food web

Answers

oxygen, carbon dioxide and water

Plants and bacteria.

evidence about the moons appearance changing because earth casts a shadow on the moon

Answers

Answer:

An eclipse? Particularly a lunar eclipse.

Explanation:

Lunar eclipses happen when the Earth covers the sun's light and casts a shadow on the moon.

Color, Shape Texture, and Buoyancy are all?

Answers

Answer:

they're all properties of matter

Answer:

Art?‍♂️

Explanation:

FRAMESHIFT mutation. Explain what this means and how it affects the
protein

Answers

Explanation:

frameshift mutation is a type of mutation involving the insertion or deletion of a nucleotide in which the number of deleted base pairs is not divisible by three. ... Each group of three bases corresponds to one of 20 different amino acids used to build a protein.

genome dot gov

Question 14 (2 points)
A series of organisms listed in a way that shows which is a food source for another is
called a(n)
A
while an)
Ą
is made up of multiple connected energy paths in an ecosystem.

Answers

Answer:

Explanation:

the answer is a ecosystem

A Series of organisms listed in a way that shows which .....

What is neurotechnology?

Answers

Neurotechnology is any technology that has a fundamental influence on how people understand the brain and various aspects of consciousness, thought, and higher order activities in the brain.

GIVING BRAINLIEST!!!!!

why is the bladder like a water ballon?

Answers

Answer:

It fills up with waste liquids (known as urine) and swells up to store more of the waste fluid.

Explanation:

Answer:

So that it is kept flexible respective of the amount of urine it holds without getting damaged

HELP ASAP!!NO LINKS OR UNRELATED ANSWERS (I WILL REPORT YOU IF YOU DO)
Muscle cells make up about ____________ of your body mass.

A. a quarter

B. half

C. three quarters

Answers

Answer:

I'd say B. Muscles make up about 40% of the body so the cell amount should be even.

A fossil is the hardened remains or imprint of a previously living organism.
true or false

Answers

Answer:

True

Explanation:

Fossils are preserved remains of organisms. They are preserved in two ways. They can be the actual remains of organisms.

How do plants use flowers

Answers

Answer:

I don't know the answer, but it won't let me delete my previous answer.

Explanation:

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