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The atomic weight of an element is double its atomic number. If there are four electrons in 2P orbital, the element is:
(1) C
(2) N
(3) O
(4) Ca
Ans: O
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i need a full assignment on reflection
Review guide: gases: heat, temperature, volume
It is the force that the field would exert on any unit magnetic pole placed in the field. It is also known as magnetic force.
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