Chemistry Final Review

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, where elements with similar properties are grouped together.

Front

What is an ion?

Back

An atom or molecule that has gained or lost one or more electrons, resulting in a net electric charge.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the smallest particle of an atom?

Back

Electron.

Front

What is a chemical change?

Back

A process where one or more substances are transformed into different substances with different properties.

Front

What is a proton?

Back

A positively charged particle found in the nucleus of an atom.

Front

What is a neutron?

Back

A neutral particle found in the nucleus of an atom, with no electric charge.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the significance of the period in the periodic table?

Back

A period is a horizontal row in the periodic table, indicating elements with the same number of electron shells.

Front

What is the significance of the group in the periodic table?

Back

A group is a vertical column in the periodic table, indicating elements with similar chemical properties due to having the same number of valence electrons.