7. Which one of the following pairs of elements would have a (i) N or o
(ii) For CI
8. The size of an anion is larger than that of its parent atom w
that of its parent atom. Explain.
9. Explain why the first ionization energy of Na is lower than that
energy of Na is higher than that of Mg?
10. What prompted Bartlett to discover noble gas compound?
11. Explain the trends in chemical properties of noble gases.
12. Write the uses of the following:
(1) Helium
(ii) Argon
(iii) Neon​

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.

the answer would be a