1) What is the electronic configuration of a fluoride ion? a) 1s² 2s² 2p⁵ b) 1s² 2s² 2p⁶ c) 1s² 2s² 2p⁴ d) 1s² 1s² 2p⁶ e) 1s² 2s² 2p⁸ 2) Element M is in group 1. Element X is in group 6. What is the likely formula of the compound containing M and X? a) MX b) MX₂ c) M₂X d) M₂X₂ e) 2MX 3) A fluoride ion and an argon atom have the same... a) Number of protons b) Number of electrons c) Electronic Configuration d) Atomic Number e) 2 and 4 f) 2 and 3 4) Which of these represent an ionic compound? a) Good electrical conductivity as a solid. Good electrical conductivity as a liquid. Low melting point b) Good electrical conductivity as a solid. Good electrical conductivity as a liquid. High melting point c) Poor electrical conductivity as a solid. Poor electrical conductivity as a liquid. Low melting point d) Poor electrical conductivity as a solid. Good electrical conductivity as a liquid. Low melting point 5) How many chloride ions touch each sodium ion in the crystal structure of NaCl? a) 2 b) 4 c) 6 d) 8 6) Element Y is in group 2 and Element T is in group 5. What is the likely formula for the compound with Y and T? a) YT b) Y₂T c) Y₃T₂ d) T₂Y₃ e) Y₂T₃ f) T₃Y₂

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