In the periodic table of the elements, the period refers to the
A) energy level of the electrons.
B) number of neutrons.
C) number of protons.
D) atomic mass of the atom.
E) mass of the photons emitted by the atom.

Question

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The Answer of In the periodic table of the elements, the period refers to the
A) energy level of the electrons.
B) number of neutrons.
C) number of protons.
D) atomic mass of the atom.
E) mass of the photons emitted by the atom.

In the Periodic Table of the Elements, the Period Refers