If the atomic number of an element remains the same but the number of neutrons has been increased, which factor has been changed in that element?

the number of electrons

the chemical symbol

the number of protons

the mass number

The correct answer is the last option: the mass number

Explanation:

Hello! Let's solve this!

If the atomic number is the same, it means that the number of protons does not change.

The mass number is the sum of neutrons plus protons. So if the neutrons have increased, the mass number will also increase.

We conclude that the correct answer is the last option: the mass number

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.