Atomic Structure Review

Front

Protons are...

Back

Positive charge

Front

What is the mass of this atom?

Back

19

Front

What does the figure show?

Back

two different isotopes

Front

What is the name of this element?

Back

Argon

Front

What is the difference between Sulfur-23 and Sulfur-25?

Back

Sulfur-25 has two more neutrons than Sulfur-23

Front

What are neutrons?

Back

Neutrons are particles in the nucleus of an atom that have no charge.

Front

What is an isotope?

Back

Isotopes are atoms of the same element that have different numbers of neutrons.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the mass number?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.