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- Predict the formula for a compound made from X+ and Y. Insert subscripts as needed. formula: XY SPECIAL ΑΣΩ (s) (1) (aq)In(s) + Fe(s) -> FeI,(s) Match the words in the left column to the appropriate blanks in the sentences on the right.Which equation correctly represents the first ionization of calcium? A Са+ (g) + e- Ca (g) Са- (g) Са (g) + e- Са (g) — Са-(g) + е- Са (g) Са+ (g) + e- E Са (g) + e- — Са-(g)
- Be sure to answer all parts. The following table gives numbers of electrons, protons, and neutrons in atoms or ions of a number of elements. Atom or Ion of Element Species A Species B Species C Number of Electrons 5 Number of Protons 5 Number of Neutrons 5 36 18 35 19 46 20 (a) Which of the species are neutral? A в ос (b) Which are negatively charged? A В (c) Which are positively charged? A2-98 Explain how the ionization energy of atoms changes when proceeding down a group of the Periodic Table and explain why this change occurs.3-58 In Section 2-3B, we saw that there are seven diatomic elements. (a) Draw Lewis structures for each of these diatomic elements. (b) Which diatomic elements are gases at room temperature? Which are liquids? Which are solids?