Why do elements (such as Neon and Argon) in the 18th Group do not form ions?

Explanation:

Hey there!!

The reason is they are noble gases, and already has 8 electrons due to which they donot tend to react with other gases. Elements reacts for having stable electronic configuration but the elements like Neon and Argon has already 8 electrons so, they don't form ions.

Hope it helps...

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm