Atoms and the Periodic Table Unit Test

Front

Where are nonmetals found on the periodic table?

Back

Right Side

Front

What is a proton?

Back

A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.

Front

What are the particles in an atom that are neutral and have no charge?

Back

Neutrons

Front

What is the primary function of electrons in chemical reactions?

Back

They bond atoms together to form molecules.

Front

How do you find the number of neutrons in an atom?

Back

Atomic mass - atomic number.

Front

What is the atomic number of an element?

Back

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

Front

What is the significance of the periodic table?

Back

It organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are metalloids?

Back

Elements that have properties intermediate between metals and nonmetals, found along the zig-zag line on the periodic table.

Front

What is the role of valence electrons?

Back

They are the electrons in the outermost shell of an atom and are involved in forming bonds with other atoms.

Front

What is an ion?

Back

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