Atomic Structure and Electron Configuration

AP Chemistry· difficulty 1/5

The mass of a proton is approximately equal to the mass of a

A
$Helium atom$
B
$Hydrogen atom$
C
$Neutron$
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D
$Electron$

Explanation

Protons and neutrons each have mass \approx 1 amu; electrons are ~1/1836 the mass of a proton.

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