weight
Groups are arranged as columns in the periodic table; the contained elements have similar properties.
Periodic table is arranged by atomic number. elements are arranged in groups and periods.
Periodic table is arranged in rows and columns. there are 7 periods and 18 groups.
Periodic table comprises of elements. These are arranged in groups and periods.
The periodic table has 7 periods and 18 groups. The order of elements is governed by the number of protons.
Groups in the periodic table are the vertical columns in which the elements are arranged.
Elements are arranged on the Periodic Table in the order of the atomic number, in groups and periods.
Groups are arranged as columns in the periodic table; the contained elements have similar properties.
Periodic table is arranged by atomic number. elements are arranged in groups and periods.
Periodic table is arranged in rows and columns. there are 7 periods and 18 groups.
by groups and periods
Periodic table comprises of elements. These are arranged in groups and periods.
The elements are arranged in order of increasing atomic number in the Periodic Table. The rows are called periods and the columns are called groups.
The periodic table of Mendeleev contain now 118 chemical elements arranged in groups and periods.
1) The elements are arranged according to vertical columns.
The periodic table has 7 periods and 18 groups. The order of elements is governed by the number of protons.
by their atomic number