Question

12c denotes that element carbon has mass number of 6 and atomic
number 12.
moyimum of eight electrons​

Answer 1

Answer:

If you want to correct the statement then...12u is the atomic mass of carbon-12 isotope,that we usually take as carbon atom.6 is it's atomic no. and valency is 4

Explanation:

there's nothing to explain, it's carbon's property