Periodic Table

Question 1

Ionisation down a group

Answer 1

Decreases because electrons being removed further away from the nucleus, less strongly held.

Question 2

Atomic radius across a period

Answer 2

Decreases because core charge increases causing electrons to be more strongly attracted to nucleus.

Question 3

Atomic radius down a group

Answer 3

Increases because there are more shells occupied with electrons.

Question 4

Electronegativity across a period

Answer 4

Because the core charge increases which causes the attraction between the bonding electrons and the nucleus to be stronger.

Question 5

Electronegativity down a group

Answer 5

Decreases because the bonding electrons in the valence shell get further from the nucleus, the attraction is weaker.

Question 6

Ionisation across a period

Answer 6

Increases because the core charge increases causing electrons to be held more strongly.