Question

1. choose the best answer.

an element that has a different number of neutrons than protons is a(n)——
isotope
valence element
ion
positron

1. choose all that apply.

choose three postulates of the bohr model of the atom.
electrons in each orbit contain a specific amount of energy.
electrons can only gain or lose energy by jumping to a higher or lower orbit.
electrons can only lose energy by jumping to a higher or lower orbit.
electrons can travel in any path at any distance from the nucleus.
electrons can only travel in discrete orbits at specific distances from the nucleus.

Explanation:

Answer:

Electrons in each orbit contain a specific amount of energy.
Electrons can only gain or lose energy by jumping to a higher or lower orbit.
Electrons can only travel in discrete orbits at specific distances from the nucleus.
isotope