We only consider ions that yield a Noblegas configuration (Na+, Mg2+, O2-, N3-, andF-). We are comparing ions with the samenumber of electrons: 10 total and 8 valence inthis case. The number of protons in the ionis the biggest determinate of the size whenelectron number is constant.# e-val.innerprot.eff.chargeN3-10827+5O2-10828+6F-10829+7Na+108211+9Mg2+108212+10The greater the effective nuclear charge, thestronger the attraction between the protonsand the electrons, and thus the smaller theradii.015(part 1 of 1) 10 pointsAssumen1andn2are two adjacent energylevels of an atom. The emission of radiationwith the longest wavelength would occur forwhich two values ofn1andn2?1.4,52.5,63.3,44.7,8correct5.2,36.6,77.1,2Explanation:016(part 1 of 1) 8 pointsParticles of light are called photons and theyhave no mass and no charge.1.False2.TruecorrectExplanation:017(part 1 of 1) 12 pointsCalculate the wavelength of radiation with afrequency of 4.9×1014per second.Correct answer: 6
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