Periodic table trends

Question 1

What is atomic radius

Answer 1

Distance from the centre of an atom to the outermost shell

Question 2

Trends of atomic radius?

Answer 2

increases going down and decreases going from left to right (due to electrostatic forces of attraction)

Question 3

what is ionisation energy

Answer 3

Minimum amount of energy required to remove the first valence electron from an atom

Question 4

Trends of ionisation energy

Answer 4

Increases from left to right Decreases down any group

Question 5

How come Elements in group 3/13 have lower ionisation energy that group 2.

Answer 5

This is due to electron sheiling

Question 6

What is electron shielding

Answer 6

When outermost electrons are partially shielded from the attractive force of the protons in the nucleus buy the inner electrons

Question 7

What is electronegativity

Answer 7

Ability of an atom in a molecule to attract electrons in a covalent bond to itself

Question 8

What are some trends of atomic radius

Answer 8

Increases from left to right and decreases down any group