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Given "X" could be any element determine the charge on ''X'' given the following chemical formula: X3P
The number of electrons in [ 40 19 k ] -1 is: (1) 19 (2) 20 (3)18 (4)40 Ans: 40
How are standard solutions and titrations prepared in industry?
DISCOVERY OF SUB-ATOMIC PARTICLES The atomic theory of the Greek philosophers, Leucippus and Democretus (400 B.C.) held that continued subdivision of matter would ultimately yi
Q. Show Experimental observations of werners theory? Werner showed that his postulates are consistent with experimental observations. He made use of basically three kinds of ex
An element L has 9 protons and valency 1. Another element M has valency 3 and 5. What is the difference in the number of electrons in L and M ?
describe exothermic and endothermic reactions with examples.
Which one is the electron deficient compound: (1) ICl (2) NH 3 (3) BCl 3
atomic volume
lanthanoids with +4 o.s act as strong oxidising agents even though it is in stable configuration f zero
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