See if you can complete the following table using only what is on this page. Hint: Two of the entries are for the same element. Element
Symbol
Nuclear
Symbol
Atomic Mass
Protons Neutrons Electrons
Number Number
83 Cu
29
Ga
67
31
29
36

See attached picture.

Explanation:

Hello there!

In this case, according to the given information, it is possible to complete the table by knowing that the atomic number is the same to the number of protons equals those of electrons and that the neutrons are calculated by subtracting the atomic mass and the protons; thus, we are able to obtain the result as shown on the attached picture.

Best regards!

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.