Group 1

Question 1

Charge for group 1 elements

Answer 1

+1

Question 2

Uses for Li

Answer 2

Batteries
Lithium Oxide - Silica
Lubricaton

Question 3

Uses for Na

Answer 3

Sodium vapour lamp

Question 4

Uses for K

Answer 4

Fertilizer
Soap

Question 5

Uses Cs

Answer 5

Photoelectric cells

Question 6

Reaction with Water

Answer 6

Forms metal hydroxide and Hydrogen gas
2Li(s) + 2H2O(l) → 2LiOH(aq) + H2(g)

Question 7

Reaction with oxygen (needs heat)

Answer 7

Forms metal oxide
4Li(s) + O2(g) → 2Li2O(s)

Question 8

Metal Oxide with water

Answer 8

Forms metal hydroxide
Li2O(s) + H2O(l) → 2LiOH(aq)

Question 9

Reaction with Chlorine gas

Answer 9

Forms metal chloride
2Na(s) + Cl2(g) → 2NaCl(s)