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Write the symbol of chromium.

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Important Questions on Atoms and Molecules
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MEDIUM

HARD




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(a) Cobalt CO
(b) Carbon c
(c) Aluminium AL
(d) Helium He
(e) Sodium So

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\n, if we increased the mass number then density does not changed only volume changed, it means if we increase the mass in other systems then the only volume will be changed. It becomes, .
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