Answer:
i believe the answer is a
Explanation:
Answer:
You determine the number of protons by its atomic number, just like electrons.
I am joyous to assist you anytime.
Answer:
As you move across a period, the atomic mass increases because the atomic number also increases. ... The atomic mass for any given atom mainly comes from the mass of the protons and neutrons.
Explanation:
Answer:
Pb^+7
Explanation:
I placed the carrot there to signify the +7 is supposed to be small. It is plus seven because seven nuetrons are added
