Name the Group in the Modern Periodic Table which has elements that are all gases.

Question

Question

This question was previously asked in

RRC Group D Previous Paper 41 (Held On: 16 Oct 2018 Shift 2)

Answer 1

The correct answer is Group 18.

Important Points

The periodic table was first given by Mendeleev of 63 elements and defined as " physical and chemical properties of the elements are the periodic function of their atomic masses".
After Mendeleev due to some demerits, a Modern Periodic table was given by Henry Moseley which is defined as "physical and chemical properties of elements are the periodic function of their atomic number".
In the periodic table, vertical columns are called groups, and horizontal rows are called periods.
In the periodic table, 18 groups and 7 periods are given and 118 elements discovered till now.

Key Points

In the periodic table, group 18 called as Inert gases group or noble gases group because all elements are in a gaseous state of this group and all elements are stable in nature.
It includes helium, neon, argon, krypton, xenon, and radon.
The characterized of Noble gases are:
- Low reactivity
- Low boiling point
- Very low electronegativity
- High ionization energy
- Colourless and odourless