Nuclear Symbol

Front

What charge does a neutron have?

Back

Neutral

Front

How many protons does Helium (He) have?

Back

2

Front

What is the atomic number for an element with three protons?

Back

3

Front

What is the number of protons in the element with atomic number 7?

Back

7

Front

What does atomic number represent?

Back

The number of protons in an atom.

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of an electron?

Back

Negative

Front

What is the relationship between atomic number and the number of electrons in a neutral atom?

Back

In a neutral atom, the number of electrons equals the number of protons, which is the atomic number.

Front

What is the atomic mass of an element?

Back

The weighted average mass of an element's isotopes.

Front

What is the difference between atomic number and atomic mass?

Back

Atomic number is the number of protons, while atomic mass is the total number of protons and neutrons.