The correct answer is (A) : 3s2, 3p4
Element E is Selenium
The element which is just above ‘E’ in periodic table is sulphur, its electronic configuration is 1s2, 2s2, 2p6, 3s2, 3p4.
Element above
The number of oxygen atoms present in chemical formula of fuming sulphuric acid is _______.
For the circuit shown above, the equivalent gate is: