Question

On the periodic table, gold has the atomic number 79. This means that

A. an atom of gold has 79 protons and electrons combined.

B. gold can be found in 79 isotopes.

C. gold was the 79th element discovered.

D. an atom of gold has 79 protons.

Answer 1

Answer: An atom of gold has 79 protons in its nucleus, or, in your case, C.

Explanation: The atomic number of an atom is the number of protons in the nucleus of an atom.

(I'm not entirely sure if this is clear enough, sorry!)

Answer 2

Option D is correct.

Step-by-step explanation:

Atomic number of an element represent the number of protons present in its nucleus.

So, option D will be correct.