Inorganic Chemistry

Which of these decreases down Group 2?

• First ionisation energy

• Atomic radius

• Number of protons

• Reactivity with water

Which statement about astatine is correct?

• Astatine has a greater electronegativity than bromine

• Astatine is a better oxidising agent than bromine

• Astatine has a greater boiling point than bromine

• Astatine has a greater first ionisation energy than bromine

What is the element symbol of the least reactive element in group 2?

What is the element symbol for the most reactive element in group 7?

As you go down group 2, melting point decreases, why is this?

• more electron shielding

• more protons

• less electron shells

• lower nuclear charge

Why does reactivity increases as you go down group 2?

• more protons

• more shielding

• outer electron further from nucleus

Group 2 elements are held together by which type of bonds?

What state is bromine as room temperature?

• solid

• liquid

• gas

A more reactive halogen will swap with a less reactive halogen in a compound, what type of reaction is this?

To form an ionic compound, group 7 elements must do what?

• gain an electron

• lose an electron

• share electrons

• form delocalised electrons