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Correct statement is:
(1) K=4s1, Cr= 3d4 4s2, Cu= 3d10 4s2
(2) K=4s2, Cr= 3d4 4s2, Cu= 3d10 4s2
(3) K=4s2 Cr= 3d5 4s1, Cu= 3d10 4s2
(4) K=4s1, Cr= 3d5 4s1, Cu= 3d10 4s1
Ans: K=4s1, Cr= 3d5 4s1, Cu= 3d10 4s1
Following Hund's rule which element contains six unpaired electron: (1) Fe (2) Co (3) Ni (4) Cr Ans: Cr
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The configuration 1s 2 2s 2 2p 5 3s 1 shows: (1) Excited state of O 2 - (2) Excited state of neon (3) Excited state of fluorine (4) Ground state of fluorine ato
What is the net flux of the uniform electric field of Exercise 1.15 through a cube of side 20 cm oriented so that its faces are parallel to the coordinate planes?
plz help me.
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Ions which have the same electronic configuration are those of: (1) Lithium and sodium (2) Sodium and potassium (3) Potassium and calcium (4) Oxygen and chlorine An
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