Question

What quality differentiates hydrogen (H) from the other elements in group 1, the alkali metals? (1 point)
• It is a non-metal.
• It is found by itself in nature.
• It has more than one valence electron.
• It is not very reactive.

Answer 1

The quality that differentiates hydrogen (H) from the other elements in group 1, the alkali metals, is:

• It is a non-metal.

Hydrogen is unique in that it is a non-metal, while all the other elements in group 1 are metals.