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Till 20elememts write the no of electrons in outermost shell.if less than 4 then this is the valency otherwise subtract from 8
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how does solvation of alkali ions occur
The energy that opposes dissolution of a solvent is: (1) Hydration energy (2) Lattice energy (3) Internal energy (4) Bond energy Ans: B
Q. Explain about Dihalide? Dihalides: Dichlorides and dibromides are formed by the lower members of the group, viz., Se, Te and Po. These are formed mainly by dissociation of t
please help me to do assignment about noble gas.
construction of dry cell
Why lanthanides shows more than 7 coordination number
How many types of colloidal system? and which are they?
Electronic configuration of Sc 21 is: (1) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 , 4s 2 , 3d 1 (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 , 4s 1 , 3d 2 (3)1
Q. What do you mean by electro-magnetic radiation? In the untimely twentieth century scientists accepted the idea that an atom consisted of a massive positively charged nucleus
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