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Electronic configuration of Sc21 is:
(1) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d1
(2) 1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d2
(3)1s2, 2s2, 2p6, 3s2, 3p6, 4s0, 3d3
(4) 1s2, 2s2, 2p6, 3s2, 3p2, 4s2, 3d2
Ans: 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d1
the atomic number of element represents
2-Ethylbutanoic acid can be prepared by a malonic ester synthesis
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You make up 0.100 L of a buffer having 1.00 M acetic acid and 1.10 M sodium acetate. The Ka of acetic acid is 1.8 x 10-4. (a) Determine the pH of this buffer.
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2p orbitals have : (1) n=1, l=2 (2) n=1, l=0 (3) n=2 l=1 (4)n=2, l=0 Ans: n=2 l=1
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