Atomic Structure

Front

What is an element?

Back

A pure substance made from a single type of atom.

Front

How many electrons are in sodium?

Back

11

Front

True or False: A neutron has no charge at all.

Back

True

Front

An electron has a _________ charge.

Back

negative

Front

True or False: An atom always has the same number of electrons, protons, and neutrons?

Back

False

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom.

Front

What are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

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

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.