What is the differenc between group and period?

Answer 1

Groups are columns

Periods are rows

Answer 2

A group in the Periodic Table is a column of elements with similar chemical properties, while a period is a row of elements with increasing atomic number. Elements in the same group have the same number of valence electrons, which contributes to their similar properties. On the other hand, elements in the same period have the same number of electron shells.

Answer 3

In the periodic table of elements, groups are the columns, numbered 1-18 OR 1-8 (note that the 8th group in the latter of the 2 formats is called group 0).