Respuesta :
Atomic mass number is the number of protons and neutrons. Subtract 80-35=45 is the number of protons. Because the atom is neutrally charged, the number of protons must equal the number of electrons, so there are 45 electrons.
Answer:
45 electrons.
Explanation:
mass number = 80
no. of neutrons = 35
Given that it is a neutrally charged atom,
no. of electrons = mass no. - no. of neutrons
= 80 - 35
= 45 electrons.
