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(Solved): 24. Which Of The Following Species Has/have The Ground-state Electron Configuration Shown Below? 1s ...


24. Which of the following species has/have the ground-state electron configuration shown below? 1s 2s 2p 1. Ne 2. F 3. Nat 4

24. Which of the following species has/have the ground-state electron configuration shown below? 1s 2s 2p 1. Ne 2. F 3. Nat 4. AP+ a) 1 and 2 b) 1 and 3 c) 1 d) 2, 3, and 4 e) All of these species have this electron configuration. 25. The energy change illustrated in the equation: Li(g) → Lit(g) + e- (520 kJ/mol) is called a) electronegativity b) ionization energy c) electron affinity d) dissociation energy e) lattice energy 26. 27. e) iodine 28. Which of the following has the smallest atomic radius? a) Al b) Si d) S Which of the following is a metaloid element? a) chromium b) arsenic c) copper d) sulfur Rank the elements Li, Be, C and N in order of decreasing first ionization energy a) Li > Be > C>N b) N>C>Be > Li c) Be > Li>C>N d) Be > C > Li>N e) C> Be>N>Li c) Nacio e) [Ar]4s?3d 29. What is the formula for sodium chlorate? a) NaOCI b) Na,OCI, c) NaCIO d) Nacio, 30. What is the ground state electron configuration of Fe ? a) [Ar] 4s²3p b) [Ar] 4s%3d c) [Ar] 4s 3d d) [Ar]3d 31. In the preferred Lewis structure of CO, the number of unshared electron pairs is: a) 2 b) 4 d) 8 32. A covalent bond where electrons are not shared equally is said to be a(n) bond. a) polar covalent b) coordinate covalent c) pi d) sigma e) ionic e) 10


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