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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
how many grams are there in 1.204 *10^24 atoms of Au?
Which of the following represents the electronic configuration of an element with atomic number 17: (1) 1s 2, 2s 2 , 2p 6 , 3s 1, 3p 6 (2) 1s 2 , 2s 2 , 2p
Shielding of proton by electrons
The orbital angular momentum of an electron in 2s -orbital is: (1) 1/2 h/ 2Π (2) h/ 2Π (3) √2 h/ 2 Π (4) Zero Ans
what is allotropy
Ask question #Minimum 100 what is sodium pump words accepted#
advantages and dis advantages?
how we determine the compound is ir active or not . and how we determine the polarity of a compound?
why is filtration in soil and water a slow process and explain the colour change in the filtrate
A piston device haves 0.8 kg of an ideal gas initially at 200 kPa and 30oC. The gas is then compressed slowly in a polytropic process during which PV1.3 = constant until the volume
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