Chemistrymedium · Past Paper
Which element has 4 valence electrons and is in Period 2?
ASilicon
BCarbon
CGermanium
DNitrogen
✓ Correct Answer: B — Carbon
Carbon (At. No. 6) has configuration 2, 4. It is in period 2 and group 14.
Share this question
More from Chemistry
- What is the oxidation number of Hydrogen in Metal Hydrides (like NaH)?
- What substance increases the rate of a chemical reaction without being consumed?
- What is the valency of Helium?
- What is the identity of the 'reducing agent' in the reaction: $2Al + 3Fe^{2+} \rightarrow 2Al^{3+} + 3Fe$?
- What is the shape of the C60 Fullerene molecule?