One atom k40 has how many neutrons

Answers

Answer 1

Answer: K-40 has 21 neutrons?

Explanation: Potassium is element number 19. So it has 19 protons. 40 is the mass number. The mass number is the total number of protons and neutrons. 19 + n = 40, n = 21 ( i think ?)


Related Questions

A geographer is interested in studying how and why the environments of the Amazon Rainforest and the Andes Mountains are different. Which essential element of geography would the geographer use to complete this research?
A.
human systems
B.
physical systems
C.
places and regions
D.
uses of geography

Please select the best answer from the choices provided
A
B
C
D

Answers

Answer:

B.

physical systems

Explanation:

The guy the answerd above me is currently wrong. Trust me its physical systems!

Answer: the correct answer is B

Explanation:

What type of infographic is a cutaway drawing of a building?

Answers

A cutaway drawing, also called a cutaway diagram is a 3D graphics, drawing, diagram and or illustration, in which surface elements of a three-dimensional model are selectively removed, to make internal features visible, but without sacrificing the outer context entirely

Question 17 of 20
Which of these descriptions most likely represents a human community with
the highest birthrates?
A. Low economic status, more access to technology
B. High economic status, more access to technology
C. Low population density, less access to technology
D. High population density, low economic status

Answers

Answer:

A human community with high population density and low economic status will have the highest birthrates.

Explanation:

A is not correct because usually, these are populations in countries that are transitioning from one political to another political model, and these populations actually tend to decline, mostly because of immigration.

B is not correct because such populations tend to have low birthrates, often even below the bar for simple replacement of the population.

C is not correct because such populations tend to live in very bad conditions, so despite having relatively high birthrates, they stagnate in their growth.

D is correct because such populations have both the numbers needed and also live in more traditional societies, leading to very high birthrates, as can be seen with Nigeria, Ethiopia, Pakistan, Indonesia, etc.

Answer:

D

Explanation:

I Just Took the Test.

In which country was the fastest wind speed of 408 km an hour recorded?
a. South Africa
b. Argentina
c. Australia ​

Answers

Answer:

It is C Australia

Explanation:

South America's greatest river system is the ___________.

Mississippi-Missouri
Nile
Amazon
Rhine

Answers

Answer:

Answer: Amazon River

Explanation:

:) :) :)

Mississippi River is the answer

What are the 5 major climate zones and what are their defining characteristics? FE​

Answers

tropical, dry, temperate, cold and polar.

Which of the following statements about the Aztec’s religious beliefs is true?
A.

The Aztec’s cities contained churches where people went to pray.
B.

The Aztec held public religious ceremonies that involved sacrifices and dancing.
C.

The Aztec mummified their dead leaders and took them to public ceremonies.
D.

The Aztec people practiced a monotheistic religion.



Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

the answer is c

Explanation:

Answer:

THE ANSWER IS B

Explanation:

I TOOK THE TEST ON EDGE 2020 YOUR WELCOME!!

What is the name of the country labeled with the number 1 on the map above?

Answers

Answer:

Number one is Mexico

The name of the country labelled with the number 1 on the map above is Mexico.

What is the prehistory of Mexico?

The prehistory of Mexico stretches back millennia. The earliest human artefacts in Mexico are chips of stone tools found near campfire remains in the Valley of Mexico and radiocarbon-dated to circa 10,000 years ago.

Mexico is the site of the domestication of maize, tomato, and beans, which produced an agricultural surplus. This enabled the transition from paleo-Indian hunter-gatherers to sedentary agricultural villages beginning around 5000 BCE. In the subsequent formative eras, maize cultivation and cultural traits such as a mythological and religious complex, and a vigesimal numeric system, were diffused from the Mexican cultures to the rest of the Mesoamerican culture area. In this period, villages became denser in terms of population, becoming socially stratified with an artisan class, and developing into chiefdoms.

The most powerful rulers had religious and political power, organizing the construction of large ceremonial centres.

Learn more about Mexico, here:

https://brainly.com/question/11374711

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Shanivia Sanders
As the basic units of life, cells are living systems that carry out all of the functions
needed to sustain life. Which process is common to all cells?
O All cells get nutrients from the air
All cells need and use energy
All cells make their own food
O All cells allow organisms to move

Answers

All cells need and use energy

Which of the following is NOT a unique property of water?


A.
Surface tension

B.
It's a powerful solvent

C.
Ice is less dense than water

D.
It only exists in liquid and solid form

Answers

Answer:

D)it only exists in liquid and solid form

I looked out through the window while flying in a plane to D.C. and saw wispy strings of ________ clouds above us on an otherwise clear, sunny day. g

Answers

I think the answer is cirrus clouds. Cirrus clouds look stringy-like and are at about the same altitude that planes fly.

An ethnic group is made up of people who share

Question 9 options:

a common government philosophy.


a common social class and level of education.


a common language, history, or place of orgin.


a common trade or occupation.

Answers

Answer: a common language, history, or place of orgin.

Explanation:

Answer:

An ethnic group is made up of people who share

C. a common language, history, or place of origin.

Explanation:

This is a social category of people that share attributes within their residing area.

Kepler discovered that a planet does not orbit the Sun at a constant speed. Rather, at the point closest to the Sun known as the perihelion, the planet’s speed is

Answers

Answer:

Fastest,

Explanation:

The farther a planet is away from the sun the slower it is, the closer it is the faster its orbit

Answer:

fastest

Explanation:

Plato/Edmentum

what characteristic can you describe about the people living in southeast Asia?​

Answers

Answer:

they are hospitable explanation

Which phrases apply to metamorphic rocks? Check all that apply.

A form under extreme heat and pressure
B form from existing rocks
C form from magma and lava
D form when sediments combine
E form from volcanic eruptions

Answers

Answer:

a. b

Explanation: i took the test

Answer:

A and B

Explanation:

edge 22'

Free Beautiful points plzz freind me and say hi and you get 20 points!!!! If I love your answer the best then.......... BOOM............ Brainliest!!!

Answers

Answer:

Hi u r really sweet u just give ur points to make friends

Explanation:

May u become successful in life and work hard for ur goals

Answer: Tyyyy!!!!

Explanation:

The Moon's gravity on Earth is about______the Sun's gravity on Earth.​

Answers

Answer:

the gravity on is the air and its far miles to the sun

Explanation:

What import did ancient Egyptian rely on from southwesr asia

Answers

Answer:

there were very good resources

Explanation:

The resources were good for them so they traded and they relied on Southwest Asia

Large numbers of skilled workers left iran in the early 21st century,primarily beacause?

Answers

Answer:

They sought more skilled opportunities in countries like the United States

Explanation:

They sought more skilled opportunities in countries like the United States.

3) Without the ability to grow and sell tobacco, the early American
colonies may not have survived. Now we know that tobacco is
harmful. If colonists knew it was harmful then, would it have been
right for them to sell it anyway? Explain your thinking.

Answers

No, it wouldn’t be right to sell tobacco still because they know it would still harm other and cause held problems.

Select the correct answer from each drop-down menu.
Cities are __ ( rural, Agricultural or urban) , permanent human settlements. When cities start merging with surrounding suburbs to accommodate growing populations__(megapolitan, metropolitan, and micropolitan)
areas are formed. An example of such an area in the United States is __ (Johannesburg, New York City, and Tokyo). The words in the () are the possible answers fyi lol
.

Answers

Answer:

urban.

metropolitan

NYC

how have glaciers shaped the landscape of western europe

Answers

Answer:

A glacier's weight, combined with its gradual movement, can drastically reshape the landscape over hundreds or even thousands of years. The ice erodes the land surface and carries the broken rocks and soil debris far from their original places, resulting in some interesting glacial landforms.

Explanation:

Describe the characteristics of winter

Answers

snowy cold and cool !!

Describe 2 different ways humans modify the environment. Include why they modify the environment and the negative impact of the modification.

Answers

Answer:

for thousands of years humans have modified the physical environment by clearing the land for agriculture or damming streams to store and divert water as we industrialized we built factories and power plants

Explanation:

The Malwa plateau is bounded by the------------ range in the north west​

Answers

Answer:

Malwa Plateau, plateau region in north-central India. It is bounded by the Madhya Bharat Plateau and Bundelkhand Upland to the north, the Vindhya Range to the east and south, and the Gujarat Plains to the west. Of volcanic origin, the plateau comprises central Madhya Pradesh state and southeastern Rajasthan state

Explanation: hope this helps

Answer:

I know the answer but I will not give you the answer because you don't talk to me when you will talk then I'll give the answer then please reply me

Who decides who the leaders should be?

Answers

Answer:

common people

Explanation:

by their votes

----------------------------------------------------

What type of information does a physical map always show?

A. natural features
B. national boundaries
C. roads
D. where people live

Answers

Answer:

A. Natural features

Explanation:

This is because a physical feature is made up of features the world has to give us aka natural (not man-made).

Today 8 friends went out for lunch the total bill was $59.13 including tax and gratuity one of them ordered only soda needed to pay for only $1.80 the other seven friends order the same daily special how much did each of the other friends need to pay

Answers

Answer:

the other four friends pay $8.02 each .

Why do you think water is essential for life on Earth?

Answers

Answer:

At heart, all life on Earth uses a membrane that separates the organism from its environment. ... In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment.

Explanation:

Found it on Google

Hope it Helps

Please mark Brainliest

What are the two types of infectious diseases?

Answers

Answer:

bacteria

fungi

type of infection diseases i believe

viruses, bacteria, fungi, and parasites
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The federal government agency is very interested in the relationship between the weight of a vehicle and the vehicle's fuel economy(average miles per gallon (MPG)). Specifically, the agency is concerned that if the current trend of automobile manufacturers producing heavier new vehicles continues that its fuel economy targets will not be met. The agency's research department recently collected data for analysis in order to support the agency's upcoming discussion with industry regarding its proposed 2030 fuel economy standards. The average MPG from a random sample of 750 vehicles was recently calculated by the agency. The research division also collected the vehicle weight of these 750 randomly sampled vehicles. The Vehicle Number, Type, Vehicle Weight, Average MPG, Fuel Tank Size (Gallons), Engine Size (Liters), and Meet or Not Meet Current Standards data were collected for these 750 vehicles.Which of the following most closely describes the method of data collection used?a. Anecdoteb. Controlled experimentc. Observational study A checking account is set up with an initial balance of $5400, and $300 is removed from the account each month for rent (no other transactions occur on the account).Write an equation that can be solved to find the number of months, m, it takes for the account balance to reach $1800. Mary drives for Uber. Uber charges a $3 flat rate plus $0.30 per mile driven.What is the CONSTANT here? *(1 Point)$3Uber$0.30$3.30 "But Robin Hood lay hidden in Sherwood Forest for one year, and in that time there gathered around him many others like himself, cast out from other folk for this cause and for that. Some had shot deer in hungry wintertime, when they could get no other food, and had been seen in the act by the foresters, but had escaped, thus saving their ears; some had been turned out of their inheritance, that their farms might be added to the King's lands in Sherwood Forest . . . all, for one cause or another, had come to Sherwood to escape wrong and oppression." The Merry Adventures of Robin Hood, Howard Pyle Use the drop-down menus to answer the questions. What happened as a result of Robin's conflict with the man in the forest? ANSWER: He became a leader of a band of outlawsWhat do all the outlaws in Sherwood Forest have in common? ANSWER: They are troubled by unfair laws 5. The island was filled with many trails winding through the thickLundrbrush, a small lake, and dangerous wild animalsin A type of sentence? During which process of the water cycle does water change from gas to liquid Suppose Adriana spends $ 73.00 dollars on T-shirts and pants. A T-shirt costs $5.50 and pants cost $25.50. How can you represent this situation with an equation? hello everyone right now i started at 9:30 MST and I have to do 3 hours of work I have to do a 30 minute zoom at 10:45 MST what time will I be done When welding, the welder holds which of the following?A ElectrodeB Electrode leadC Electrode holderD Workpiece connection Blago Wholesale Company began operations on January 1, 20X1, and uses the average cost method in costing its inventory. Management is contemplating a change to the FIFO method in 20X2 and is interested in determining how such a change will affect net income. Accordingly, the following information has been developed: 20X1 20X2 Final inventory: Average cost $150,000 $255,000 FIFO 160,000 270,000 Condensed income statements for Blago Wholesale appear below: 20X1 20X2 Sales $1,000,000 $1,200,000 Cost of goods sold 600,000 720,000 Gross profit 400,000 480,000 Selling, general, and administrative 250,000 275,000 Net income $150,000 $205,000 Required: Based on this information, what would 20X2 net income be after the change to the FIFO method? Ignore any income tax effects of this change in accounting method.