Fundamentals of atoms and molecules — task. Science TNSB Mentoring, Class 10 Crash course.

Choose the correct answer:

1. Who proposed the first scientific theory of an atom?

Newland
Neils Bohr
Ruther Ford
John Dalton

2.The mass of neutron is approximately equal to __________.

\(6.023\times10^{-23}\) \(g\)
\(1\) \(amu\)
\(1\) \(g\)
\(1.609\times10^{-19}\) \(g\)

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