Chemistry-B

Front

Which particles contribute to the mass of an atom?

Back

Protons and Neutrons are the particles that contribute to the mass of an atom.

Front

How are elements in the periodic table arranged?

Back

Elements in the periodic table are arranged in order of Increasing atomic number.

Front

What is Group 18 in the periodic table referred to as?

Back

Group 18 is referred to as Noble Gases.

Front

Where are electrons located in an atom?

Back

Electrons are found in the Electron Shell.

Front

What must be true for an atom to be neutral?

Back

An atom must have the same number of protons and electrons to be neutral.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of a neutron?

Back

A neutron has no charge (neutral).

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

What is the atomic number of an element?

Back

The atomic number of an element is the number of protons in its nucleus.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.