The Periodic Table Vocabulary

Front

Group 1 elements are called?

Back

Alkali metals

Front

Who organized the periodic table by atomic number?

Back

Moseley

Front

Group 18 elements are called?

Back

Noble gases

Front

Half the distance between the nuclei of two identical atoms bonded together.

Back

Atomic radius

Front

Elements that are dull, brittle, and form anions.

Back

Nonmetals

Front

What are the elements in Group 2 of the periodic table called?

Back

Alkaline earth metals

Front

What is the term for the ability of an atom to attract electrons in a chemical bond?

Back

Electronegativity

Front

What do you call the horizontal rows in the periodic table?

Back

Periods

Front

What is the term for the energy required to remove an electron from an atom?

Back

Ionization energy

Front

What are the elements that have properties of both metals and nonmetals called?

Back

Metalloids