WorksheetsAlkali Metals
Total questions: 10
Worksheet time: 5mins
How many electrons do the alkali metals have in their outer shell?
1
2
8
7
What happens to the atomic radius of the alkali metals as you move down the group?
increases
decreases
A piece of sodium metal was placed in water which contained a few drops of Universal Indicator. What is the colour change of the indicator?
green to purple
green to red
red to green
red to purple
Which of the following statements correctly describes what is observed during the reaction between sodium and water?
The sodium metal burns with an intense lilac flame.
The sodium metal catches fire and melts.
The sodium metal dissolves in water without fizzing.
The sodium metal sinks in water.
Which of the following equations correctly represents the reaction between sodium and water?
Na(s) + H2O(l) → NaO(s) + H2(g)
2Na(s) + 4H2O(I) → 2NaO(s) + H2(g) + O(g)
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
2Na(s) + 4H2O(l) → 2NaOH(aq) + O2(g)
Lithium is above potassium in Group I. Which property of lithium is correct?
Lithium forms the ion, Li3-.
Lithium floats in water.
Lithium has a high melting point.
Lithium is more reactive than potassium.
Sodium and rubidium are both in Group I of the Periodic Table. Which one of the following statements is correct?
Both metals form acidic oxides.
Rubidium has more electrons in its outermost shell than sodium.
Rubidium reacts less quickly with water than sodium.
Rubidium has a lower melting point than sodium.
