Why inert gases have bigger atomic size?

Now, the actual reason of that why noble gases have comparatively large atomic sizes is because in case of inert or noble gases all the orbitals are completely filled means they have s2p6 configuration and hence inter electronic repulsions are maximum resulting they do not form molecules, Moreover in case of noble …

Why the atomic size of noble gases is greater than the atomic size of halogen members?

Noble gases have bigger atomic size than halogens because van de Waals radii are bigger than covalent radii.

Why inert gases are larger than those of the preceding halogen?

noble gases have comparatively higher atomic size than corresponding halogens because of the reason that vander waal’s radii (present in noble gases) is much larger than ionic and covalent radii (present in other elements).

Why noble gases are chemically inert explain on the basis of their electronic configuration?

The noble gases were previously known as ‘inert gases’ because of their perceived lack of participation in any chemical reactions. The reason for this is that their outermost electron shells (valence shells) are completely filled, so that they have little tendency to gain or lose electrons.

Why atomic radius of noble gases are not considered in comparison?

Noble gases do not form molecules. In case of noble gases, the atomic radii corresponds to van der Waal’s radii. By definition, van der Waal’s radii are larger than covalent radii. It is for this reason that noble gases are very large in size as compared to other atoms belonging to the same period.

How the atomic size vary in a group and across a period explain with suitable example?

Across the period from left to right there is a decrease in atomic size with increase in nuclear charge of the element. Atomic size increases down the group because of the addition of extra shells. So, as we move from group 1 to group 18 the size of the atom will decrease due to increased effective nuclear charge.

Why are noble gases smaller?

The size of the atom is positively correlated to several properties of noble gases. The ionization potential DECREASES with an INCREASING radius, because the valence electrons in the larger noble gases are further away from the nucleus; they are therefore held less tightly by the atom.

Which of the following does not increase while moving down the group of the periodic table?

valence electrons
Correct answer: (c) valence electrons. Explanation: The number of valence electrons does not increase while moving down the group in the periodic table.

Why inert gases are chemically inactive?

Answer: When elements react, their atoms complete their outer shells by losing, gaining, or sharing electrons . The atoms of noble gases already have complete outer shells, so they have no tendency to lose, gain, or share electrons. This is why the noble gases are inert and do not take part in chemical reactions.

Which noble gas does not have general noble gas configuration?

The noble gas which does not hve general noble gas electronic configuration ns2 np6 is Helium.

How does atomic size vary down the group and why?

Atomic size of an element increases down a group. This is because as one moves down a group its number of electrons increases(not arithmetically), so number of shells also increases. As a result of which atomic size increases.