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Հարց 19

Which family name applies to the metallic members of group 1, with hydrogen excluded from that classification?

  1. Alkali metalsՃիշտ պատասխան
  2. Halogens
  3. Alkaline-earth metals
  4. Transition metals

Բացատրություն

The metallic members of group 1 are alkali metals; hydrogen occupies the column but is not classified as one. The similarly named family in the next column is a different set, so hydrogen must not be used to broaden the metallic label.

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Հարց 19: Which family name applies to the metallic members of group… · The Periodic Table and Elements · Questena