Question

in which group of periodic table all the noble elements are present

Answer 1

group 18 in which all Nobel gases are present in periodic table

Answer 2

All noble gases are present in Group 18 of Modern Periodic Table.

$\bf{Step\:wise\:explanation}$

We know the noble gases have complete filled outermost shell ie they have 8 valence electrons.

If valence electrons are between 3-8 , group number is given by the formula 10+number of valence electrons.

Group Number =10+8

=18

So, all noble gases Fall in group 18 .

#There is an exception with noble gas Helium (He) that has 2 valence electrons but falls in group 18 .

$\bf{Hope\:It\:helps}$