1.

Give secientific reasons.A. All the mass of an atom is concenrated in the nucleus.B. Atom is electrically neutral.C. Atomic mass number is a whole number.D. Atoms are stable though negatively charged electron are revolving within it.

Answer» Give secientific reasons.

A. All the mass of an atom is concenrated in the nucleus.

B. Atom is electrically neutral.

C. Atomic mass number is a whole number.

D. Atoms are stable though negatively charged electron are revolving within it.


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