Flashcard on Atomic Structure

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.

Front

What is a neutron?

Back

A neutron is a neutral particle found in the nucleus of an atom.

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 element?

Back

An element is a pure substance made up of only one type of atom.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that retain their individual properties.

Front

What is the atomic mass unit (amu)?

Back

The atomic mass unit (amu) is a standard unit of mass that quantifies mass on an atomic or molecular scale.

Front

How do you identify a positively charged atom?

Back

An atom is positively charged if it has more protons than electrons.

Front

How do you identify a negatively charged atom?

Back

An atom is negatively charged if it has more electrons than protons.