2.15 & 2.16

2.15 What determines an element's chemical properties?

Its electronic configuration especially its outer-shell electrons

2.15 Why do elements in the same group have similar chemical properties?

They have similar outer-electron configurations

2.16 How many electrons can an s subshell hold?

2

2.16 How many electrons can a p subshell hold?

6

2.16 How many electrons can a d subshell hold?

10

2.16 How many orbitals are in a d subshell?

5

2.16 Which elements occupy the s-block?

Groups 1 and 2

2.16 Which elements occupy the p-block?

Groups 13 to 18

2.16 Where is the d-block?

Between the s- and p-blocks

2.16 Which electrons are being added across the d-block?

Electrons are added to d subshells

2.16 Why does the Periodic Table have blocks?

The blocks correspond to the subshell being filled by the highest-energy electrons