The atomic number (Z) uniquely identifies a chemical element. In an uncharged atom, the atomic number is also equal to the number of electrons.
The atomic number, Z, should not be confused with the mass number, A, which is the number of nucleons, the total number of protons and neutrons in the nucleus of an atom.
In this video Kristine Born explains this two concepts in more detail.
Answer:
3
Explanation:
3 is the answer is did this a little while ago
The answer is B. Mitochondria
It is the powerhouse of the cell
Control variable mi amigo
