The Periodic Table has 18 groups ant 7 periods. Hydrogen and helium are considered members of the first period.
There are 18 groups and 7 periods.
The columns are called groups and rows are called periods. There are 18 groups and 7 periods.
The periodic table has 7 periods and 18 groups. The periods are in a horizontal line and the groups are in a straight line like up to down.
The elements are listed in the order of how many atoms they have. For example, hydrogen is the first element on the periodic table. Hydrogen is the smallest element, and has one atom.
False; That would be called groups. Periods are horiztonal rows.
Groups are columns and periods are rows in the periodic table of Mendeleev.
Modern periodic table has 7 periods and 18 groups.
7 periods and 18 groups are there on the modern periodic table.
The columns are called groups and rows are called periods. There are 18 groups and 7 periods.
7The periodic table has 7 periods and 18 groups.
7The Periodic Table has 7 periods and 18 groups.
The periodic table has 7 periods and 18 groups. The periods are in a horizontal line and the groups are in a straight line like up to down.
7 periods and 18 groups are there on the modern periodic table.
The elements are listed in the order of how many atoms they have. For example, hydrogen is the first element on the periodic table. Hydrogen is the smallest element, and has one atom.
The horizontal rows on the periodic table are periods. Groups are the vertical columns on the periodic table.
groups
7 periods and 12 groups
periodic table is classified into groups and periods.There are 18 groups and 7 periods in periodic table.