MikensiGgg MikensiGgg

30-05-2016
Chemistry

Answered

Which of these subatomic particles adds the most mass to an atom?

Aproton
Bphoton
Celectron
DIt depends on what the element is.

An atom with two protons, three neutrons and two electrons would have a mass of about how many atomic mass units?

A2
B3
C5
D7

Verified Answer :

taskmasters taskmasters

06-06-2016

The answer for the first question is A. Proton is the subatomic particles which adds most of the mass of an atom as well as the neutron since they have the same mass. Photon, on the other hand, is not one of the subatomic particles.

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