Periodic Table

Question 1

What is periodicity

Answer 1

Trends in the periodic table

Question 2

Thwya re divided in to groups and periods

How do u difficiate between a group and a period

Answer 2

Gg

Question 3

What is

Group 1

Group 2

Group 3-12

Group 17

Group18

Answer 3

Group 1- alkali metals

Group 2 - alkali earth metals

Group 3-12 - transition metals

Group 17 - halogens

Group18 - nobal gases

Question 4

What is atomic radius

Answer 4

The distance from the center of an atom to the outmost electron

Question 5

Down a group the atomic radius increases

Why?

Answer 5

The peirod number increases hense the number of shells increase
Valnece electrons get to be further from the nucleus

Question 6

Across a group period number decreses
Why?

Answer 6

th number of protons increases thus the nucleus gains protons. there’s is a greater stronger force of attraction between the nucleus and the outer shell. thus the shells are pulled towards the nucleus by the electrostatic force of attraction
decreasing atomic radius