Using the VSEPR theory, predict that the shape of ammonia, HH_3 bent linear trig

Question

Using the VSEPR theory, predict that the shape of ammonia, HH_3 bent linear trigonal pyramidal Using the VSEPR theory, predict that the shape of beryllium dihydride, BeH_2 bent linear tetrahedral trigonal The geometry (shape) of the BrF_3 molecule is best described as: bent tetrahedral T shaped trigonal The geometry (shape) of the ICI_2 molecule is best described as: bent tetrahedral T shaped linear The smallest bond angle in PCI_5 is: 90 degrees 109.5 degrees 120 degree 145 degree Predict the hybridization that occurs for the carbon atom in a methane. CH_4. molecule? sp^3d^2 sp^2 sp^3d What types of hybridization of carbon are in the compound ethene CH_2CH_2? sp^3 sp^2 sp^3 Predict the hybridization that occurs for the nitrogen atom in a methane, NH_3, molecule? sp^3d^2 sp^2 sp^3d sp^3

Explanation / Answer

17) In Ammonia the central atom is Nitrogen

the electronic configuration of nitrogen : 1s2 2s2 2p3

Here one s and three p orbitals undergoes hybridisation and forms sp3 hybridized orbitals [electronic geometry tetrahedral]

one sp3 hybrid orbital has lone pair of electron, so the actual geometry of molecule is trigonal pyramidal

18) the electronic configuration of berrylium : 1s2 2s2

the exiceted state configuration will be 1s2 2s1 2p1

one s and one p orbital undergoes hybridisation : so the hybridisation is sp

The shape is linear

19) The hybridisation of BrF3 : sp3d

There are two lone pair of electrons so the shape is "T-shaped"

20) The hybridisation in ICl2- is sp3d

There are three lone pair of electrons , so the shape is linear

21) There are three bond angles in PCl5 : 180 ,120 and 90

So the smallest angle is : 90

22) the hybridisation in CH4 is sp3

23) in alkene the carbon has hybridsation sp2

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