- Determine which ions have noble-gas configuration: Sn2+ Zr4+ Co2+ Ag+ S2−?

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Problem involving math induction! 1. Prove for every integer p, p^2 + 3p + 8 is even.? If x^2+y^2 = 6, and x+y=3, then what is x^3+y^3? What is 4 x 6? What day will it be exactly 6 months from June 14th, 2017? Best answer gets buncha stars? Problem involving math induction! If m and n are distinct real numbers, prove that (m+2)^2 = (n+2)^2 if and only if x+y=-4?