Question

2. The compound formed when iron [Fet] combines with oxygen [02-). -
3. The group to which Ca2+ (calcium) belongs in the Modern Periodic Table. -
.
4. A non-metal which is polyatomic.
5. A diatomic non-metal. -
ir correct names from list II:​

Answer 1

Explanation:

2) ferrous oxide

3)group 2

4)carbon

5)C2