FLASH Card: Periodic Table Trends and Electrons

Front

Periodic Table

Back

Arrangement of elements by atomic number

Front

Atomic Number

Back

Number of protons in an atom

Front

Periods

Back

Horizontal rows in the periodic table

Front

Groups

Back

Vertical columns in the periodic table

Front

Valence Electrons

Back

Electrons in the outermost shell

Front

Group 1 Elements

Back

Alkali metals

Front

Group 18 Elements

Back

Noble gases

Front

Reactivity Trend in Metals

Back

Increases down a group

Front

Reactivity Trend in Nonmetals

Back

Increases up a group

Front

Atomic Radius Trend

Back

Increases down a group, decreases across a period