Solid, Liquid, Gas, and Plasma
A period is a horizontal row of the periodic table. There are seven periods in the periodic table, with each one beginning at the far left. ... A group is a vertical column of the periodic table, based on the organization of the outer shell electrons. There are a total of 18 groups.
Answer:
thanks for your points
God bless you ALWAYS
and pa follow
at pa brainlest answer please
