Physics Middle School

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State 4 differences (at least 3) between period and groups in the periodic table

Answers

Answer 1

Explanation:

They are;

The vertical columns of periodic table is called group and the horizontal rows of periodic table is called periods.The valance electron of all elements in the same group are the same but in periods the valance electron of elements in the same period increases from left to righr.The size of atoms increases top to bottom. but in case of periods the size of atoms decreases from left to right.Metalic reactivity increases and non metalic reactivity decreases from top to bottom. but in periods metalic reactivity decreases and non metalic reactivity increases from left to right.

hope it helps...

Related Questions

what are the physical changes on water

Answers

1. Ice melting involves a change from a solid to a liquid and the substances maintain the properties of water because the molecules never change. 2. Water boiling is a physical change as water molecules vibrate faster, they enter the gas phase and become water vapor.
The physical changes is the water freezing and the water evaporating.

Which choice most accurately defines resistance and voltage of a circuit?

Resistance can be defined as the potential difference between two points in a circuit, while voltage is the amount of electrons moving through a point in a circuit every second.

Voltage can be defined as the potential difference between two points in a circuit, while resistance is the amount of electrons moving through a point in a circuit every second.

Voltage can be defined as the potential difference between two points in a circuit, while resistance opposes the flow of electrons in a circuit.

Resistance can be defined as the potential difference between two points in a circuit, while voltage opposes the flow of electrons in a circuit.

Answers

Answer:

Resistance can be defined as the potential difference between two points in a circuit, while voltage is the amount of electrons moving through a point in a circuit every second.

Explanation:

How many hydrogen atoms are there in the following compound: 4CHA (2 points)
Select one:
a 4
b. 8
c. 12
d. 16

Answers

Answer:

4

Explanation:

The number 4 that is infront of the CHA(4CHA) means to say that there are 4C 4H and 4A

Tip:the number infront of a equation is call the coefficient

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