Last Answered 31/1/21 The air contains approximately...
3% noble gases
7096 nitrogen
595 002
2190 Oxygen​

You need to divided twenty four by a dozen them by the temperature it is getting cook by

You use the atomic number to find out how many protons and neutrons there are in the atom. you use the atomic mass to find out how many protons and electrons there are in the atom. 

Well technically there are two correct answers b and d. but for you its probably b in general.good day sir/ma'am : ) (i know not gender)