Question

After the discovery of isotopes, scientists were able to conclude that?

O all atoms of a given element have the same mass but may have different numbers of protons
O all atoms of a given element have the same number of protons but may have different masses
Od
all atoms of a given element are identical
all atoms of a given element may have different masses and different numbers of protons

Answer 1

all atoms of a given element have the same number of protons but may have different masses

Step-by-step explanation:

After the discovery of isotopes, scientists were able to conclude that all atoms of a given element have the same number of protons but may have different masses.

Isotopes are atoms of an element that have the same atomic number but different mass number.

The atomic number is the number of protons within an atom.

Mass number is the number of protons and number of neutrons.

Therefore, all atoms of a given element have the same number of protons but different mass.