The atomic number of an atom is equivalent to which of the following? question 3 options: a. the number of protons plus the number of neutrons in the nucleus b. the number of neutrons in the nucleus c. the number of protons in the nucleus d. the number of electrons outside the nucleus

C. the number of protons in the nucleus

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answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).