AIEEE Exam

Element with atomic number 56 belongs to
which block?
(A) s (B) p (C) d (D) f

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AIEEE Other Question

In Bohr series of lines of hydrogen spectrum, the
third line from the red end corresponds to which
one of the following inter-orbit jumps of the
electron for Bohr orbits in an atom of hydrogen?
(A) 5 → 2 (B) 4 → 1
(C) 2 → 5 (D) 3 → 2 The highly metallic element will have the
configuration of -
(A) 2, 8, 7 (B) 2, 8, 8, 5
(C) 2, 8, 8, 1 (D) 2, 8, 2