Atomic Structure

Front

What determines what element an atom is?

Back

The number of protons.

Front

What must be true for an atom to be neutral?

Back

The atom has the same number of protons and electrons.

Front

What are subatomic particles with a positive charge?

Back

Protons.

Front

How many protons does sulfur have?

Back

16.

Front

What does the number 16 represent for the atomic element sulfur?

Back

The atomic number.

Front

What are neutrons?

Back

Subatomic particles with no charge found in the nucleus of an atom.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the atomic mass of an element?

Back

The weighted average mass of an atom's isotopes.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the nucleus of an atom?

Back

The central part of an atom containing protons and neutrons.