Group 1 - Alkali Metals

Question 1

What happens to the reactivity as you go down Group 1 and why?

Answer 1

It increases because it the force of attraction gets weaker between the outer electron and the nucleus. This then makes it easier to lose an electron.

Question 2

What happens to the melting/boiling point as you go down Group 1 and why?

Answer 2

It decreases because as the atoms get bigger it is easy to break the negative charge holding them together.

Question 3

What type of bond do Alkali metals form with group 7 gases? Describe this bond.

Answer 3

Ionic bond it is when the alkali metal gives a valence shell electron to the halogen and they are then both negatively and positively charged thus then being attracted electrostatically.

Question 4

What does Lithium + oxygen make?

Answer 4

Lithium oxide

Question 5

What does Sodium and Oxygen make?

Answer 5

Sodium oxide (Na20) or Sodium Peroxide (Na2O2)

Question 6

What does Potassium and Oxygen make?

Answer 6

Potassium Peroxide (K2O2) or Potassium Superoxide (KO2)