Question

write down the mass of one atom of sodium....​

Answer 1

Answer:

22.99g

Explanation:

mass of Na atoms = Na/mole X 1mole/6.023x10power 23

Answer 2

Answer:

we know that the atomic number of sodium is 11. this tells us that sodium has 11 protons and because it is neutral it has 11 electrons . the mass number of an element tells us the number of protons and neutrons in an atom (the two particles that have a measurable mass) sodium has a mass number of 23 amu