Oxygen,carbon,hydrogen,and nitrogen- together make up 95 percent of the mass of the human body.
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Answer:
Generally, we know that ionic compounds are formed by reaction of metals and non metals and non metals form a covalent or non ionic bonds.
<u>IONIC COMPOUDS</u>
- Iron and chlorine (FeCl2) , ( FeCl3)
- Chlorine and Lithium (LiCl)
- oxygen and calcium ( CaO)
- Potassium and Sulphur ( K2S)
<u>NON IONIC COMPOUNDS</u>
- Potassium and Calcium (covalent bond)
- Sulphur and Bromine (covalent bond)
Explanation:
Let's check Electronic configuration of N in ground state


In hydrogen case

Hence Hybridization


Structure is tetrahedral .
Spare way:-
- Bond pairs==3=>Bonding electrons=6
- Lone pair=1=>Anti bonding electrons=2
Hybridization
![\\ \sf\longmapsto \dfrac{1}{2}[\sigma+\sigma *]](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20%5Cdfrac%7B1%7D%7B2%7D%5B%5Csigma%2B%5Csigma%20%2A%5D)
![\\ \sf\longmapsto \dfrac{1}{2}[6+2]](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20%5Cdfrac%7B1%7D%7B2%7D%5B6%2B2%5D)
![\\ \sf\longmapsto \dfrac{1}{2}[8]](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20%5Cdfrac%7B1%7D%7B2%7D%5B8%5D)

- sp3 Hybridization
- Shape-Tetrahedral .
A) because you are moving closer to the moon