Respuesta :

adityanirmansewa

Answer:

24 is the answer of this question

Perplexed20
Atomic number given is 12 is Mg magnesium

Protons and electrons are equal if element has not become an ion. 12 protons +, and 12 negative electrons= atomic number of 12

Charge of -2 means there are:
/////. 14 negative electrons