Atomic theory, atomic structure, periodic table

Front

Who discovered the nucleus of the atom?

Back

Rutherford

Front

What color on the periodic table represents metalloids?

Back

Bright Yellow

Front

What is the atomic number?

Back

The number of protons in an atom.

Front

How many neutrons are in a sodium atom?

Back

12

Front

What color on the periodic table corresponds with transition metals?

Back

Blue

Front

What is the definition of atomic mass?

Back

The weighted average mass of an atom's isotopes.

Front

What does the periodic table organize?

Back

Elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the significance of the atomic number?

Back

It determines the identity of an element and its position in the periodic table.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.