ATOMIC MATH Solve the problem as we did in class, starting each step with the answer from the previous step.
NO DECIMALS; NO NEGATIVE NUMBERS
Add the atomic number of radium, Ra, to the number of electrons in argon 1 point
Ar.
Your answer
Subtract the atomic mass (rounded) of sodium, Na.*
1 point
Your answer
Multiply by the number of protons in beryllium, Be
1 point
Your answer
Divide by the number of electrons in helium, He.
1 point
Your answer
Subtract the number of neutrons in iron, Fe,
1 point
Your answer