Which statements explain why the melting point of potassium is lower than that of calcium
CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding
Problem
Which statements explain why the melting point of potassium is lower than that of calcium?
- I Calcium ions have a higher charge than potassium ions.
- II Potassium ions have a larger radius than calcium ions.
III Potassium has a lower first ionisation energy than calcium.
(1) I and II
(2) II and III
(3) I and III
(4) I, II and III