The "atomic number" of an atom is determined by the number of ________ it has.
A) electrons
B) protons
C) neutrons
D) protons + neutrons
E) protons + electrons

Name: The "atomic number" of an atom is determined by the number of ________ it has. A) electrons B) protons C) neutrons D) protons + neutrons E) protons + electrons
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The atomic number of an atom is equal to the number of protons it has in its nucleus. This number determines which element the atom represents.

The "Atomic Number" of an Atom Is Determined by the Number