Chemical Equations

Front

What is an electron?

Back

An electron is a subatomic particle with a negative charge that orbits the nucleus of an atom.

Front

Which particle is negative?

Back

Electrons are the negatively charged particles in an atom.

Front

What are the three main particles that make up an atom?

Back

Electrons, protons, and neutrons.

Front

What is the symbol for Helium?

Back

He

Front

What charge do protons have?

Back

Protons have a positive charge.

Front

What is the nucleus of an atom?

Back

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

Front

What is the charge of neutrons?

Back

Neutrons have no charge; they are neutral.

Front

How do you determine the number of protons in an atom?

Back

The number of protons is equal to the atomic number of the element.

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 a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.