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- Arrange the atoms and/or ions in the following groups in order of decreasing size. (Express your answer as a chemical formula.) 1. Co+, Co²+, Co³+ 2. S²-, Cl-, K+ 3. Fe²+, Ni²+, Zn²+ AArrange the atoms and/or ions in the following groups in order of decreasing size. (Express your answer as a chemical formula.) 1. Ti²+, Zn²+, Ni²+ 2. Ni, Ni+, Ni²+ 3. Ca²+, K+, CI- V V > V4, 134. Although both Br3 and Iz ions are known, the F3 ion has not been observed. Explain. 101 ond 102 Would vou make the
- Write electron configurations for a. the cations Sr2+, Cs+, In+, and Pb2+. b. the anions P3-, S2-, and Br-.Write the empirical formula for at least four ionic compounds that could be formed from the following ions: 3+ 2+ Fe³+, MnO, C₂H₂O₂, Fe²+ 0.0.... X Ś1. Draw Lewis Structures (including resonance structures if applicable) for the following molecules/ions: A. NO3– B. NO2– C. NO2+ D. O3 2. Which of the following items in Number 1 are isoelectronic?
- How do Group VIA elements form ions? A) They lose protons B) They gain two protons C) They lose two electrons D) They gain two electrons Which substance consists of anions and cations? A) CaF2, Calcium Fluoride B) Br2, Bromine C) Ag, Silver D) SiO2, Silicon Dioxide A newly discovered element is assigned to Group VIIA (Group 7A) in the periodic table. What charge will ions of this new element have? A) 1- B) 2- C) 1+ D) 2+ Reactions occur when atoms, ions or molecules collide. In a reaction between magnesium and bromine atoms, how many atoms of bromine will react per atom of magnesium? A) 1 B) 2 C) 3 D) 4 Which compound exists as a solid crystal lattice of cations and anions at room temperature? A) BrCl B) CaCl2 C) SCl2 D) SiCl4Consider the imaginary element X. Which would you expect to have the largest radius and why? 1. X* 2. X Because 3. There are fewer protons in the nucleus of this species to pull the electron cloud toward the nucleus. 4. There are more electron-electron repulsions in this species, so the electron cloud is pushed out farther from the nucleus. O 1, 3, and 4 O 2 and 4 O 2 and 3 O 1 and 4 O 2, 3, and 4 O 1 and 3 MacBook Air 80 DII DD F3 F4 F5 F6 F7 F8 F9 $ & * 4 6 7 8. R Y UThe illustration to the left represents a mixture of xenon ( brown ) and fluorine ( green ) molecules.
- You have just discovered a new element, "Zoomfatigueium" (Zo). It's a non-metal that has similar properties to those elements in Group 14 of the periodic table. The following questions are about species containing this element. 1) If Zo can be found in Group 14, then how many valence electrons does it have? 2) Zo forms a polyatomic ion with the formula Zo03 called the "youremuted ion." You are not sure of its charge until you discover that it forms the ionic compound MgZoO3. What must be the charge of the youremuted ion? 3) Draw a plausible Lewis structure for the yourmuted ion, using the answer to Question 2 to guide how many valence electrons must be represented in the structure. 4) Based on your answer to Question 3, answer the following questions about the youremuted ion: a. Molecular geometry of Zo b. Hybridization of Zo 0- Zo -0 bond angles C. 5) The Zo - O single bond has a length of 143 pm while the Zo -0 double bond has a length of 123 pm. In the youremuted ion, the Zo - O…Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: Fe²+, Pb4+, Br, 0²- 0 0,0.... DoMixing SbCl 3 and GaCl 3 in a one-to-one ratio gives a solid ionic compound of empirical formula GaSbCl 6 . A controversyerupts over whether this compound is [SbCl 2 ] + [GaCl 4 ] ─ or [GaCl 2 ] + [SbCl 4 ] ─ . It is learned that the cation in the compound has abent structure. Based on this fact, which combination is more likely to be correct? Explain.