3 - Periodicity

Question 1

Transition metals

Answer 1

D-block

Question 2

Other metals, non metals and noble gases (periods 13-18)

Answer 2

P-block

Question 3

Rows and columns are called -

Answer 3

Rows - periods

Columns - groups

Question 4

What group are the halogens?

Answer 4

Group 17

Question 5

The periodic table is arranged so properties -

Answer 5

Repeat periodically

Question 6

Atomic radius down a group -

Answer 6

Increases

Question 7

Atomic radius through a period -

Answer 7

Decreases

Question 8

Why does atomic radius across a period decrease

Answer 8

Because there are more protons, so attraction increases but electrons are added to the same shells

Question 9

Ionization energy across a period

Answer 9

Increases

Question 10

Ionization energy across a group

Answer 10

Decreases

Question 11

Electronegativity from left to right -

Answer 11

Increases because more protons in nucleus = more attraction of electrons

Question 12

Electronegativity down a group

Answer 12

Electrons get further from nucleus, decreases

Question 13

First two periods

Answer 13

S-block

Question 14

What has less electronegativity and ionization energy?

Answer 14

Metals because of less electron affinity among valence electrons