Question

the atomic number of an element is 12 how many protons electrons are there in an atom of the element​

Answer 1

Oxygen has the atomic number 8; its atoms contain 8 protons and 8 electrons. Uranium has the atomic number 92; its atoms contain 92 protons and 92 electrons. Each atom also has a mass number, denoted by the symbol A.

Answer 2

Answer:

There are 12 proton and 12 electron in an atom.

ATOMIC number 12 is of magnesium and its atomic mass is 24.