Periodic Table

Front

What does the 18.998 represent in this periodic table square?

Back

Atomic mass.

Front

What are valence electrons?

Back

Electrons in the outermost energy level of an atom.

Front

Group on the far left of the periodic table in which 1 electron in the outer level reacts STRONGLY with other elements?

Back

Alkali Metals.

Front

What does the zig-zag line on the periodic table indicate?

Back

It separates metals from nonmetals.

Front

What does malleable mean?

Back

Easy to shape or bend.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What are noble gases?

Back

Elements in Group 18 that are mostly unreactive due to having a full outer electron shell.

Front

What is the periodic law?

Back

The properties of elements are a periodic function of their atomic numbers.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.