Noun
the atomic number of an extra stable strongly bound atomic nucleus: 2, 8, 20, 28, 50, 82 or 126
Source: WordNetIn fact, researchers have settled on what they believe is the magic number for true expertise: ten thousand hours. Malcolm Gladwell
Seven, Richie thought. That's the magic number. There has to be seven of us. That's the way it's supposed to be. Stephen King
Eradications are special. Zero is a magic number. You either do what it takes to get to zero and you're glad you did it; or you get close, give up and it goes back to where it was before, in which case you wasted all that credibility, activity, money that could have been applied to other things. Bill Gates
270 Hs: prospects for a deformed doubly magic nucleus According to calculations, 108 is a proton magic number for deformed nuclei (nuclei that are far from spherical ), and 162 is a neutron magic number for deformed nuclei. Source: Internet
After Wednesday’s games, the Knights’ magic number to clinch a playoff berth was 23 points. Source: Internet
Four times, TDs trooped up and down the stairs to vote for their chosen candidate – Leo Varadkar, Micheál Martin, Mary Lou McDonald and Eamon Ryan, each ballot doomed to fall far short of the magic number of 80 votes and/or abstentions. Source: Internet