The nitrogen atom of nh2 would have the nitrogen atom of {\rm nh_2} would have blank electrons around the central nitrogen atom. electrons around the central nitrogen atom. the nitrogen atom of nh4 would have the nitrogen atom of {\rm nh_4} would have blank electrons around the central nitrogen atom. electrons around the central nitrogen atom. the nitrogen atom of nh3 would have the nitrogen atom of {\rm nh_3} would have blank electrons around the central nitrogen atom. electrons around the central nitrogen atom.

Answer :

(a) The nitrogen atom of would have 8 electrons around the central nitrogen atom.

(b) The nitrogen atom of would have 8 electrons around the central nitrogen atom.

(c) The nitrogen atom of would have 8 electrons around the central nitrogen atom.

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

Now we have to determine the number of electrons present around the central nitrogen atom of the following molecule.

(a) The given molecule is,

As we know that nitrogen has '5' valence electrons and hydrogen has '1' valence electron.

Therefore, the total number of valence electrons in = 5 + 2(1) + 1 = 8

According to Lewis-dot structure, there are 4 number of bonding electrons and 4 number of non-bonding electrons.

From the Lewis-dot structure we conclude that the nitrogen atom of would have 8 electrons around the central nitrogen atom.

(b) The given molecule is,

As we know that nitrogen has '5' valence electrons and hydrogen has '1' valence electron.

Therefore, the total number of valence electrons in = 5 + 4(1) - 1 = 8

According to Lewis-dot structure, there are 8 number of bonding electrons and 0 number of non-bonding electrons.

From the Lewis-dot structure we conclude that the nitrogen atom of would have 8 electrons around the central nitrogen atom.

(c) The given molecule is,

As we know that nitrogen has '5' valence electrons and hydrogen has '1' valence electron.

Therefore, the total number of valence electrons in = 5 + 3(1) = 8

According to Lewis-dot structure, there are 6 number of bonding electrons and 2 number of non-bonding electrons.

From the Lewis-dot structure we conclude that the nitrogen atom of would have 8 electrons around the central nitrogen atom.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them