Question

An atom that has the same number of neutrons as 85 Rb is

Answer 1

Answer

Correct answer is isotope

Anion and cation of same element has same number of protons and neutrons but different electrons.

Isotopes have same number of protons (atomic number) thus its the same element but different mass number (A), therefore the pair of isotope have different number of neutrons.

Isobars have same mass number (A), different number of protons (atomic number) thus they are different elements.

Hope it helps

Answer 2

Answer:

just chill don't take tension