E) Br, 1, At 16. Of the following, which gives the correct order for atomic radius...

     

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E) Br, 1, At 16. Of the following, which gives the correct order for atomic radius for Ca, K, As, Ge and Kr? A) Ca> K> As > Ge> Kr B) Kr> Ge> As > K>Ca C) Ge> As> Kr> K> Ca -D) K> Ca> Ge > As > Kr Kr> As> Ge> Ca > K 17. Which of the following is an isoelectronic series? A) B5-, Si4-, As3-, Te2- F-, Cl-, Br-, I- C) S, Cl, Ar, K, D) Si2-, P2-, S2-, C12- E 02-, F-, Ne, Na+ 18. Rank the following in terms of decreasing first ionization energies? A) Ne> 0>N> Be > B B) Ne>N>0> B> Be CNe>0>N> B> Be, D) Ne>N>0> Be > B E) B > Be> 0>N> Ne X 19. Which of the following correctly represents the first ionization of oxygen? AO(g) 0+ (g) + e- B) O+ (g) + e- 02+ (g) O +840-(g) - X D) O-(g) + e--02-(g) E) O+ (g) + e-→0 (g) X 20. Which equation correctly represents the electron affinity of calcium? A) Ca (g) + e-→ Ca- (g) B) Ca (g) - Cat (g) + e- C) Ca (g) → Ca- (g) + e- D) Ca- (g) → Ca (g) + e- - ECat (g) + e- → Ca (g) 21. Which of the following has the most metallic character? [3] Al B) Ca C) Mg D) Sr E) Si 22. Which of the following is not a characteristic of metals? A) acidic oxides B) low ionization energies C) malleability D) ductility E These are all characteristics of metals. 23. In general, as you go across a period in the periodic table from left to right: (1) the atomic radius (2) the electron affinity becomes (3) the first ionization energy A decreases, decreasingly, increases B) increases, increasingly, decreases C) increases, increasingly, increases D) decreases, increasingly, increases E) decreases, increasingly, decreases negative; and E) Br, 1, At 16. Of the following, which gives the correct order for atomic radius for Ca, K, As, Ge and Kr? A) Ca> K> As > Ge> Kr B) Kr> Ge> As > K>Ca C) Ge> As> Kr> K> Ca -D) K> Ca> Ge > As > Kr Kr> As> Ge> Ca > K 17. Which of the following is an isoelectronic series? A) B5-, Si4-, As3-, Te2- F-, Cl-, Br-, I- C) S, Cl, Ar, K, D) Si2-, P2-, S2-, C12- E 02-, F-, Ne, Na+ 18. Rank the following in terms of decreasing first ionization energies? A) Ne> 0>N> Be > B B) Ne>N>0> B> Be CNe>0>N> B> Be, D) Ne>N>0> Be > B E) B > Be> 0>N> Ne X 19. Which of the following correctly represents the first ionization of oxygen? AO(g) 0+ (g) + e- B) O+ (g) + e- 02+ (g) O +840-(g) - X D) O-(g) + e--02-(g) E) O+ (g) + e-→0 (g) X 20. Which equation correctly represents the electron affinity of calcium? A) Ca (g) + e-→ Ca- (g) B) Ca (g) - Cat (g) + e- C) Ca (g) → Ca- (g) + e- D) Ca- (g) → Ca (g) + e- - ECat (g) + e- → Ca (g) 21. Which of the following has the most metallic character? [3] Al B) Ca C) Mg D) Sr E) Si 22. Which of the following is not a characteristic of metals? A) acidic oxides B) low ionization energies C) malleability D) ductility E These are all characteristics of metals. 23. In general, as you go across a period in the periodic table from left to right: (1) the atomic radius (2) the electron affinity becomes (3) the first ionization energy A decreases, decreasingly, increases B) increases, increasingly, decreases C) increases, increasingly, increases D) decreases, increasingly, increases E) decreases, increasingly, decreases negative; and

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