Must contain: 6 protons, 6 electrons and 12 neutrons.
The answer would be 371 because it has multiple complete digits
To work this out you do 400÷20=20
Answer:
I think
1. A
2. 400
3. 100
4. IDK srry
Explanation:
Ijust want to help, but I also want brainliest
Widespread distribution of Permo-Carboniferous glacial sediments in South America, Africa, Madagascar, Arabia, India, Antarctica and Australia was one of the major pieces of evidence for the theory of continental drift.
