Question

Value represents the number of protons in an element
valence electrons
atomic mass
mass number
atomic number

Answer 1

The value that represents the number of protons in an element is called the **atomic number**.

Here's a brief explanation of the other terms you mentioned:

- **Valence electrons**: These are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.
- **Atomic mass**: This is the weighted average mass of the isotopes of an element, expressed in atomic mass units (amu).
- **Mass number**: This represents the total number of protons and neutrons in the nucleus of an atom.

So, in summary, the atomic number corresponds to the number of protons in an element.