Chemistryeasy · Past Paper
What is the valency of Helium?
A2
B8
C0
D1
✓ Correct Answer: C — 0
Helium has a full outer shell (duplet state), making its valency zero as it is chemically stable.
Share this question
More from Chemistry
- Which of the following acids is a liquid at room temperature?
- The property by which carbon atoms bond with other carbon atoms to form long chains is called:
- Which of the following is used to remove permanent hardness of water?
- What type of reaction is: $NaCl + AgNO_3 \rightarrow AgCl + NaNO_3$?
- Which of these is the most reactive alkali metal?