15 multiple choice questions
1. protons are concentrated in a small area at the center of an a...
Physics, 10.10.2019 22:00 michaelgibsonsto
15 multiple choice questions
1. protons are concentrated in a small area at the center of an atom: he discovered the nucleus.
a. atomic mass number
b. rutherford's model
c. subatomic particles
d. bohr's model
2. an uncharged particle in the nucleus mass: 2,000
a neutron
b. nucleus
c. proton
Answers: 2
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Answers: 1
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