Question

Give scientific reasons of all the
mass of an atom is concentrated
in the nucleus​

Answer 1

Explanation:

Mass of an atom is contributed by the mass of the protons and neutrons present inside the nucleus of an atom and the electrons present outside the nucleus are of negligible mass therefore mass of the atom is concentrated inside the nucleus of an atom.

Answer 2

REASON:

$1) \: the \: mass \: of \: atom \: is \: concentrted \: at \: the \: centre \\ \\ because \: in \: nucleus \: protons \: and \: neutrons \: are \: present \\ \\ whose \: mass \: is \: heavier \: than \: the \: electron$

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