Atoms and Isotopes Review

Front

What is located in the 'A' position of a correctly written atomic symbol?

Back

Mass number

Front

If a sulfur atom has 16 protons, 16 electrons, and 16 neutrons, what is its atomic mass?

Back

32

Front

How do you calculate the mass number of an atom?

Back

Protons + Neutrons

Front

An atom contains 8 protons and 8 neutrons. What is the name of this isotope?

Back

Oxygen - 16

Front

What do all isotopes of carbon have in common?

Back

Atomic number and electrons

Front

Define an isotope.

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

How does the mass number differ from the atomic number?

Back

Mass number is the sum of protons and neutrons; atomic number is just protons.

Front

What is the significance of neutrons in an atom?

Back

Neutrons contribute to the mass and stability of the nucleus.

Front

How many neutrons are in an atom of Carbon-14?

Back

8 neutrons (14 mass number - 6 protons = 8 neutrons).