Groups are vertical and contain chemical elements with similar properties; periods are horizontal.
groups
7 periods and 18 groups are there on the modern periodic table.
Modern periodic table has 7 periods and 18 groups.
7The periodic table has 7 periods and 18 groups.
7 periods and 18 groups are there on the modern periodic table.
periodic table is classified into groups and periods.There are 18 groups and 7 periods in periodic table.
Groups are the vertical columns. Periods are the horizontal rows in the periodic table.
A periodic table has seven periods. It also has 18 groups and 4 different families.
7The Periodic Table has 7 periods and 18 groups.
Groups or families are the vertical columns on the periodic table. Periods are the horizontal rows on the Periodic Table.
False; That would be called groups. Periods are horiztonal rows.
The columns are called groups and rows are called periods. There are 18 groups and 7 periods.