Gamma

Given that Ga has an atomic number of 16, what is the electronic configuration?

• 2.8.4.2

• 2.8.6

• 2.8.2.2.2

• 2.4.4.8

What are the properties of metal?

(You may choose more than one option)

• malleable and ductile

• low melting and boiling point

• can conduct electricity

• high density

• form negative ions

Given that Re has 2 valence electrons, which group does Re belong in?

Across the period, the atomic radius increases as the number of neutrons increases.

• True

• False

How does the reactivity of each element differ down Group 7?

• More reactive as there are more protons and electrons

• More reactive as the atomic radius is bigger

• Less reactive as the number of neutrons increases

• Less reactive as the atomic radius is bigger

Given that Po has an proton number of 15, nucleon number of 30, indicating there are 15 protons, 15 electrons and 15 neutrons. What is the atomic mass?

• 15

• 30

• 45