Flashcard Atoms, Ions, Isotopes and Nuclear Structure

Front

What charge does a neutron have?

Back

Neutral

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What can be said about all atoms of a given element?

Back

They are identical in mass and properties.

Front

What is the primary composition of the electron cloud model?

Back

It is mostly empty space.

Front

What are the negatively charged particles of an atom?

Back

Electrons.

Front

What is an ion?

Back

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

Front

What is an isotope?

Back

Atoms of the same element that have the same number of protons but different numbers of neutrons.

Front

What is the nucleus of an atom?

Back

The central part of an atom, containing protons and neutrons.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What is the role of electrons in an atom?

Back

They are involved in chemical bonding and determine the atom's charge.