Elements of group (1) are named as …….........……

Alkali metals react with ….....……… forming alkaline solutions

……..…... is the most active metal

The valency of alkali metals is ……..…...

..............are non-metallic oxides which dissolve in water forming acidic solutions.

......... are monovalent elements exist in p-block in the periodic table.

...... is a halogen which exists in a solid state.

......... is a halogen which exists in a liquid state.

The kind of rays which are emitted from cobalt (60).

The metalloid which is used in the manufacture of electronic devices.

The first group of s-block groups in the periodic table

Elements of group zero in the modern periodic table.

The boiling point of liquified nitrogen

........ is used in preservation of cornea of the eye.