Which of these elements has 12 protons in its nucleus (atomic number = 12)?

What are the first 20 elements of periodic table - Science - Physical and Chemical Changes - 9807489 | Meritnation.com

Question 10 options:

Mg


S


C


He

Which of these elements has 12 protons in its nucleus atomic number 12 What are the first 20 elements of periodic table Science Physical and Chemical Changes 98 class=

Respuesta :

Answer:

He =12

Explanation: