Atomic Structure Flashcard

Front

What is the average atomic mass of an element?

Back

The average atomic mass is the weighted average of the masses of an element's isotopes, taking into account their relative abundance.

Front

How do you calculate the average atomic mass of an atom with multiple isotopes?

Back

Multiply the mass of each isotope by its relative abundance (as a decimal), then sum these values.

Front

What subatomic particles are found in the nucleus of an atom?

Back

Protons and Neutrons.

Front

What is the charge of a proton?

Back

A proton has a positive charge of +1.

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 of -1.

Front

How many protons are in a Magnesium atom?

Back

Magnesium has 12 protons.

Front

How many neutrons are in a Magnesium atom?

Back

Magnesium typically has 12 neutrons.

Front

What determines the charge of an atom?

Back

The charge of an atom is determined by the difference between the number of protons and electrons.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.