Question

the atom having the smallest atomic mass
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Answer 1

Answer:

Hydrogen (H) is the element with the smallest atomic mass. It consists of one proton and one electron.

Answer 2

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$\implies{\rm }$Hydrogen (H) is the element with the smallest atomic mass. It consists of one proton and one electron.

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$\implies{\rm }$An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across.

$\implies{\rm }$Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found. Electrons are tiny, negatively charged particles in an atom that move around the positive nucleus at the center. Energy levels are a little like the steps of a staircase.

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