Without consulting any tables, arrange the following sub- stances in order and explain your choice of order: (a) Mg²+, Ar, Br¯, Ca²* in order of increasing radius (b) Na, Na*, O, Ne in order of increasing ionization energy (c) H, F, Al, O in order of increasing electronegativity
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- 39. How many grams are in 2.3 x 1024 formula units of KNO3? (A) 38.6 grams (B) 102.3 grams (C) 140 grams (D) 386 grams 40. Which statement describes the general trends in electronegativity and first ionization energy as the elements in Period 3 are considered in order from Na to Cl? (A) Electronegativity increases, and first ionization energy decreases (B) Electronegativity decreases, and first ionization energy decreases (C) Electronegativity and first ionization energy both increase (D) Electronegativity and first ionization energy both decreaseGiven the following elements: Si, Sr, Cu, Ti, S (a) which of those elements would have the larget atomic radius? (b) which of those elements would have the highest ionization energy? (c) which of those elements would have the lowest electronegativity?Using Lewis electron-dot symbols to depict the monatomic ions formed from each of the following reactants, predict the formula of the compound the ions produce.(Type your answer using the format CO2 for CO2.) (a) O and Ca (b) N and Mg (c) Br and Li (d) K and P
- 39. How many grams are in 2.3 x 104 formula units of KNO,? (A) 38.6 grams (B) 102.3 grams (C) 140 gramsS (D) 386 grams 40. Which statement describes the general trends in electronegativity and first ionization energy as the elements in Period 3 are considered in order from Na to Cl? (A) Electronegativity increases, and first ionization energy decreases (B) Electronegativity decreases, and first ionization energy decreases (C) Electronegativity and first ionization energy both increase (D) Electronegativity and first ionization energy both decrease 2020 Illuminate Education TM, Inc. 9.Predict the charge on the monatomic ions formed from the following atoms in binary ionic compounds:(a) P(b) Mg(c) Al(d) O(e) Cl(f) Cs(c) Theoretically, define the following elements in the formulae belowPth = ρghq x ŋ
- Draw the Lewis structures for each of the following ions or molecules. Give the number of electrons in each species. Remember to enclose ion s in square brackets with the charge as a superscript outside the right bracket. (a) SO 2 (b) XeO 2 F 2 (Xe is the central atom) (c) ClF 3 (d) ClO 2 F (Cl is the central atom) (e) BrO 4 -Illustrated are four ions — A, B, X, and Y— showing their relativeionic radii. The ions shown in red carry positive charges: a2+ charge for A and a 1+ charge for B. Ions shown in blue carrynegative charges: a 1- charge for X and a 2- charge for Y.(a) Which combinations of these ions produce ionic compoundswhere there is a 1:1 ratio of cations and anions?(b) Among the combinations in part (a), which leads tothe ionic compound having the largest lattice energy?[Section 8.2]Illustrated are four ions — A, B, X, and Y— showing their relativeionic radii. The ions shown in red carry positive charges: a2+ charge for A and a 1+ charge for B. Ions shown in blue carrynegative charges: a 1- charge for X and a 2- charge for Y.(a) Which combinations of these ions produce ionic compoundswhere there is a 1:1 ratio of cations and anions?(b) Among the combinations in part (a), which leads tothe ionic compound having the largest lattice energy?
- Use condensed electron configurations and Lewis electron-dot symbols to depict the ions formed from each of the follow-ing atoms, and predict the formula of their compound:(a) Ba and Cl (b) Sr and O (c) Al and F (d) Rb and O3. By means of Lewis structures, represent bonding between the following pairs of elements (Your structures should show whether the bonding is essentially ionic or covalent): (a) Cs and Br (b) H and Sb (c) B and Cl (d) Cs and Cl (e) Li and 0 (f) Cl and IPredict the charge on the monatomic ions formed from the following atoms in binary ionic compounds:(a) I(b) Sr(c) K(d) N(e) S(f) In