The Nucleus of an Atom Contains ____

Question

The nucleus of an atom contains ____.  
A) neutrons and protons
B) neutrons and electrons
C) protons and electrons
D) protons only
E) neutrons only

Accepted Answer

The nucleus of an atom contains neutrons and protons. These are the two types of subatomic particles that make up the nucleus, which is located at the center of the atom. Electrons, on the other hand, orbit the nucleus in shells or energy levels. Neither neutrons nor electrons make up the nucleus alone, so choices B, C, D, and E are not correct.