Atomic Structure Flashcard

Front

What is the charge of a neutron?

Back

A neutron is electrically neutral, meaning it has no charge.

Front

What subatomic particles contribute the most to the mass of an atom?

Back

Protons and Neutrons contribute the most to the mass of an atom.

Front

How many neutrons are in Magnesium (atomic number 12)?

Back

Magnesium has 12 neutrons.

Front

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

Back

Protons and Neutrons are found in the nucleus of an atom.

Front

What is the charge of an atom with 3 protons, 4 neutrons, and 2 electrons?

Back

The atom has a +1 charge.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus.

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.

Front

What is the difference between an atom and an ion?

Back

An atom is neutral, while an ion has a positive or negative charge.

Front

What is the role of electrons in an atom?

Back

Electrons are responsible for chemical bonding and reactions.