To calculate the atomic mass<span> of a single </span>atom<span>, add up the </span>mass<span> of protons and neutrons.
So, your answer would be A) add the number of protons and neutrons</span>
It can block light. Please mark Brainliest!!!
B 3-4 is the auto
If it’s needs
<span>Report your numerical answer in units of nm. Use significant figur</span>
