![](data:image/svg+xml;charset=utf-8,<svg height="300px" width="600px" xmlns="http://www.w3.org/2000/svg" version="1.1"/>)
Which of the following has zero valency
Options
(a) He
(b) H
(c) O
(d) Na
Correct Answer:
He
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Which of the following has zero valency
