Answer:
Copper Atoms
Explanation:
All copper atoms have atomic number 29: all their nuclei contain 29 protons. But they also contain uncharged particles called neutrons. In natural copper, the atoms are of two kinds. One has 29 protons and 34 neutrons in the nucleus; the other has 29 protons and 36 neutrons
[Ar] 3d10 4s2 4p5 is the electron configuration of bromine
I think it would be Bromine and Mercury, hope that helps
Can you take picture of the whole question? I can’t see.
