Answer:
56
Explanation:
The mass number of an atom is a sum of its number of protons and neutrons. Iron (Fe) has an atomic number of 26. This means that it has 26 protons. Since we know it has 26 protons and are told it has 30 neutrons. The mass number of this atom of Iron is 26+30 = 56
Hope this helped!
The answer is electrical energy
A) Humans are made up of many cells while Bacteria are single-celled orginisms. We can reproduce, take energy and have the ability to move around
I think the answer is D not too sure tho
