Question

Which 3 things are always equal for an atom?

a. Atomic mass, Protons, Electrons
b. Atomic number, Electrons, Neutrons
c. Protons, Electrons, Neutrons
d. Mass number, Electrons, Neutrons

Answer 1

The three things that are always equal for an atom are Protons, Electrons, and Neutrons. The number of protons determines the atomic number of an element, which defines its identity. In an electrically neutral atom, the number of protons is equal to the number of electrons.

Step-by-step explanation:

The three things that are always equal for an atom are Protons, Electrons, and Neutrons. Protons are positively charged particles found in the nucleus of the atom, while electrons are negatively charged particles that orbit around the nucleus. Neutrons are neutral particles found in the nucleus. The number of protons determines the atomic number of an element, which defines its identity. In an electrically neutral atom, the number of protons is equal to the number of electrons.