A quiz by RJG:
Os + V + Xe + Cl + Fm + ? = K + Pd + W + Th + N + ?
(1) The quiz is a "perfect pangram":
abcdefghijklmnopqrstuvwxyz =
A quiz by RJG: Os + V + Xe + Cl + Fm + ? = K + Pd + W + Th + N + ?
(2) The element symbols to be added to each side are:
Os + V + Xe + Cl + Fm + B = K + Pd + W + Th + N + Y
This solution can also be written as a perfect pangram, by modifying the intro of the quiz:
abcdefghijklmnopqrstuvwxyz =
A RJG quiz: Os + V + Xe + Cl + Fm + B = K + Pd + W + Th + N + Y
(3) Atomic numbers on each side of the element sum add up to 275:
76 + 23 + 54 + 17 + 100 + 5 = 19 + 46 + 74 + 90 + 7 + 39
(4) Letters (with A=1, B=2, C=3 etc.) on each side of the element sum add up to 121:
(15+19) + 22 + (24+5) + (3+12) + (6+13) + 2 = 11 + (16+4) + 23 + (20+8) + 14 + 25