(1)
Choose the correct order of atomic radii of fluorine and neon (in pm) out of the options given below and justify your answer.
Answer: 72, 160
Answer: 72, 160
Answer: A, C
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Answer: A, C
Answer: A, D
Answer: B, C
Answer: B, C
Answer: A, C, D
Answer: A, D
Answer: A, D
Answer: A, C
Answer: B, C
(A) 1s2 2s2 2p6
(B) 1s2 2s2 2p4
(C) 1s2 2s2 2p6 3s1
(D) 1s2 2s2 2p5
Which of the following is the correct order of increasing tendency to gain electron :
Answer: A < C < B < D
Answer: I–> I > I+
Answer: lanthanoids
Answer: maximum Principal quantum number of any element of the period.
Answer: F < Cl > Br > I
Answer: For transition elements, the 3d-orbitals are filled with electrons after 3p-orbitals and before 4s-orbitals.
Answer: [Xe] 4f7 5d1 6s2
Answer: Na < Mg > Al < Si
Answer: s > p > d > f
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