Report - Welcome to 3 - MIT OpenCourseWare · [Rn]7s1 Francium 40.078 842 1484 1.54 1.00 6.113 [Ar]4s2 Calcium 44.955910 1541 2830 2.989 1.36 6.54 [Ar]3d14s2 Scandium 47.88 16 8 3287 4.5 1.54

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