Periodic Table

Front

Elements that have the same number of energy levels are said to be in the same ______.

Back

period

Front

Which halogen is found in period 4?

Back

Bromine (Br)

Front

What is the name of group number 1?

Back

alkali metals

Front

What is the name of group number 2?

Back

alkaline earth metals

Front

Which element is found in group 2, period 6?

Back

Barium (Ba)

Front

What are the vertical columns in the periodic table called?

Back

groups or families

Front

What are the horizontal rows in the periodic table called?

Back

periods

Front

What is the general trend in reactivity for alkali metals as you move down the group?

Back

Reactivity increases down the group.

Front

What is the general trend in atomic size as you move down a group in the periodic table?

Back

Atomic size increases down a group.

Front

What is the name of the group that contains the most reactive nonmetals?

Back

halogens