Last year, the International Union of Pure and Applied Chemistry (Iupac) revised the atomic weights of gadolinium, lutetium and zirconium. Gadolinium’s standard atomic weight changed from 157.250 to 157.249; lutetium’s went from 174.9668 to…
Last year, the International Union of Pure and Applied Chemistry (Iupac) revised the atomic weights of gadolinium, lutetium and zirconium. Gadolinium’s standard atomic weight changed from 157.250 to 157.249; lutetium’s went from 174.9668 to…