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Q1(A) Define valence electrons. Write the electronic configuration, electronic structure, block and find the valency of...

Q1(A) Define valence electrons. Write the electronic configuration, electronic structure, block and find the valency of Osmium. (5 Marks) Q1(B) Calculate the percentage (%) of elements in CH3(CH2)6NHCH2COOH.(5 Marks).
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Answer #1

1) valence electrons are present in the outermost shell. These electron participate in bonding.
osmium- 1s22s22p63s23p64s23d104p65s24d105p66s24f145d6

D block element.
valency- 0,2,3,4,6,8.
2)

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