HS_ES_Chemistry Review

Front

What is rust classified as?

Back

Rust is classified as a compound.

Front

How is the Modern Periodic Table of Elements arranged?

Back

The Modern Periodic Table of Elements is arranged by atomic number.

Front

What happens to an atom when it loses an electron?

Back

When an atom loses an electron, it becomes a positive ion.

Front

What are the phases of matter?

Back

The phases of matter are solid, liquid, and gas.

Front

Why are valence electrons special?

Back

Valence electrons are special because they play a role in the bonding of atoms.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together.

Front

What is the atomic number?

Back

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

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 a positive ion and a negative ion?

Back

A positive ion has lost one or more electrons, while a negative ion has gained one or more electrons.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.