A. Atom of different elements have different atomic weights
B. The mass of an atom is concentrated in the nucleus
C. An atom is made up of a nucleus and number of electrons
D. Atoms of all elements are identical
Correct Answer:
Option D – Atoms of all elements are identical
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![What is the mass of 6.02 x 10^24 atoms of magnesium? [Mg = 24, Avogadro constant = 6.02 x 10^23 atoms mol-1]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "What is the mass of 6.02 x 10^24 atoms of magnesium? [Mg = 24, Avogadro constant = 6.02 x 10^23 atoms mol-1]")