ATOMIC STRUCTURE and BOHR MODELS

Front

What are the two main areas of an atom?

Back

Nucleus and electron cloud.

Front

What is the center of an atom called?

Back

Nucleus.

Front

How many atoms are in a molecule with 3 atoms?

Back

3.

Front

What is the mass number of an atom with 7?

Back

7.

Front

What does the atomic number of an atom represent?

Back

The number of protons in its nucleus.

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the overall charge of a neutral atom?

Back

Neutral (equal number of protons and electrons).

Front

What is an electron cloud?

Back

The region around the nucleus where electrons are likely to be found.