Number of atoms — task. Science TNSB Mentoring, Class 10.

Answer variants:

electrons

four

three

gram molecular mass

\(1.008\)

\(22.400\)

atomicity

\(2.2400\)

\(22400\)

hetero

\(3.008\)

homo

1. The average atomic mass of hydrogen is

amu.

2. The number of atoms present in a molecule is called its

.

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