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
Explanation
Correct Option
dNo explanation available
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Dave333
4 years ago
each element is made up of identical particles of matter called atoms. all the atoms in a pure substance or element are identical to one another but different to the atoms in a different element.
