Multiple choice

The atomic weight of which one of the following metals is less than that of iron?

  1. Chromium

  2. Nickel

  3. Znc

  4. Copper
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A Correct answer
Explanation

Chromium has atomic weight ~52.00, which is less than iron's ~55.85. Nickel is ~58.69, zinc (typo 'Znc') is ~65.38, and copper is ~63.55 - all heavier than iron. Chromium is the only option lighter than iron.

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