Magic numbers: atoms with full shells containing any of these numbers of electrons are considered electronically stable.

A018227

Magic numbers: atoms with full shells containing any of these numbers of electrons are considered electronically stable.

Terms

    a(0) =2a(1) =10a(2) =18a(3) =36a(4) =54a(5) =86a(6) =118a(7) =168a(8) =218a(9) =290a(10) =362a(11) =460a(12) =558a(13) =686a(14) =814a(15) =976a(16) =1138a(17) =1338a(18) =1538a(19) =1780a(20) =2022a(21) =2310a(22) =2598a(23) =2936a(24) =3274a(25) =3666a(26) =4058a(27) =4508a(28) =4958a(29) =5470

External references