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When an electron revolves in a stationary orbit then:
(1) It absorbs energy
(2) It emits radiation
(3) Its energy remains constant
(4 )It gains kinetic energy
Ans: Its energy remains constant
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An element has the electronic configuration 1s 2 , 2s 2, 2p 6 , 3s 2 , 3p 2 . Its valency electrons are: (1) 6 (2) 2 (3) 3 (4)4 Ans: 4
IN AMMONIUM ION NITROGEN DOESNT HAVE VALENCE ELECTRONS IN ITS VALENCE ORBITAL.
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I want to know about law of inverse proportion clearly.
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