If you don't eat meat, you can still get your iron. Tofu is a good choice. Or go for beans, like kidney, garbanzo, or white. Food from plants has non-heme iron, which means your body doesn't absorb it as well as the heme type found in meat.
Methane is a compound and therefore does not have any atomic number. It is composed of carbon with atomic number 6 and hydrogen with atomic number 1. Methane is a compound and therefore does not have any atomic number. It is composed of carbon with atomic number 6 and hydrogen with atomic number 1.
Molybdenum is a chemical element with the symbol Mo and atomic number 42. Its electronic configuration is [Kr] 4d5 5s1 and electrons per energy level is 2,8,18,13,1. The arrangement of electrons in an atom in different energy levels and sub-levels is called electronic configuration, and it's the basis of the modern periodic table.