Which of the following electron configurations for neutral atoms is correct? argon: 1s 22s 22p 63s 23p 6
magnesium: 1s 22s 22p 63s 23p 6

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Match the name of the following compound:   mgso4  · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?