Atomic Structure Practice

Front

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

Back

7

Front

What is the atomic number?

Back

The number of protons in an atom.

Front

If an element has a mass number of 12 and an atomic number of 6, how many neutrons does it have?

Back

6 neutrons.

Front

What does the number 1.00794 represent in atomic structure?

Back

Atomic mass of Hydrogen.

Front

How is mass number defined?

Back

The total number of protons and neutrons in an atom.

Front

What is the charge of a proton?

Back

+1

Front

What is the charge of a neutron?

Back

0 (neutral)

Front

What is the charge of an electron?

Back

-1

Front

What is the relationship between protons and electrons in a neutral atom?

Back

They are equal in number.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.