22. Determine the approximate value of m/e in grams
per coulomb for the ions 127 I- and 36S2-. Why a these values only approximate?

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

Gymnast always perform on padded mats. how does the mats protect the gymnast

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.