Last question in my TEST

The correct Lewis dot structure : D.Nitrogen

Lewis structure shows the form of bonds that occur in the valence electrons of an element or compound

This bonding usually occurs in covalent bonds

Valence electrons are electrons used in a chemical bond

The main group elements usually have valence electron configurations in the ns and np subshells, While the transition elements in the subshells (n-1) d and ns.

Electron configuration of Si (group 14, main group): [[Ne] 3s² 3p² ⇒ 4 valence electrons

Electron configuration of Y (transition metal: [Kr] 4d¹ 5s² ⇒ 3 valence electrons

Electron configuration of Al (group 13, main group): [Ne] 3s² 3p¹ ⇒ 3 valence electrons

Electron configuration of N (group 15, main group): [He] 2s²2p³ ⇒ 5 valence electrons

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.