Answered

B/ electron
D, nucleus
2. Which subatomic particles are inside the nucleus of an atom?
A proton and neutron
C. proton and electron
B, electron and neutron
D. electron and nucleus
on olement and is equal to the number of​

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Answer:

A.proton and electron

In the middle of every atom is the nucleus. The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus