Fill in the blanks.

Fill in the blanks.

1.      The formula of chloride of metal M is MCl₂. The metal M belongs to group 2.

2.      18^th group in the periodic table contains elements that are all gases at room temperature.

3.      The arrangement of elements in a group of three is known as ­traids.

4.      The law used by Newlands to arrange elements is known as Newlands’ Octaves.

5.      The element eka – aluminum in Mendeleev’s periodic table is known as Gallium in modern periodic table.

6.      Elements showing properties of both metals and non – metals are known as metalloids.