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Be's 4th electron will have four quantum numbers:
n l m s
(1) 1 0 0 +1/2
(2) 1 1 +1 +1/2
(3) 2 0 0 - 1/2
(4) 2 1 0 +1/2
Ans: 2 0 0 - 1/2
How is 7.979 times 10 to the 4th in scientific notation for the ordinary notation: 7979?
what is cut off point of a solvent?
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the density of 2 molal aqueous solution of NaOH is 1.10g/L. Calculate the molarity of the solution.
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