Bohr Models

Front

What does the period number in the periodic table represent?

Back

The number of energy levels in an atom.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is a neutron?

Back

A subatomic particle with a neutral charge.

Front

What is the atomic symbol for Sodium?

Back

Na

Front

Which subatomic particle has a positive charge?

Back

Proton

Front

What is the Bohr model used for?

Back

To represent the arrangement of electrons in an atom.

Front

How many electrons can the first energy level hold?

Back

2 electrons.

Front

What is the maximum number of electrons in the second energy level?

Back

8 electrons.

Front

What is the difference between an atom and an ion?

Back

An atom is neutral, while an ion has a charge due to the loss or gain of electrons.

Front

What is the significance of valence electrons?

Back

They determine how an element reacts chemically.