What are the differences between a period and a group on the periodic table?

Answer 1

A group is a horizontal row(going across from left to right) on the Periodic Table. A period is a vertical column(going up and down).

Both are used to give information about an element. In particular, together, they can indicate the number and orbital location of the element's valence electrons (for all but the transition metals).

Answer 2

Periods are the rows and groups are the columns

Answer 3

Each horizontal row is called a period (numbered 1-7) and each vertical column forms a group.

Answer 4

groups tell the amount of valence electrons periods tell the amount of reactivity

Answer 5

On the periodic table, each period is a row while each group is a column.

Answer 6

Groups = gives what type of group it is: example: halogens (group 17)

and Periods.. someone else should answer.

Answer 7

The vertical columns in the periodic table are known are groups. The horizontal rows are known as periods.

Answer 8

The horizontal rows are referred as periods.

The vertical columns are referred as groups.