| Element | Mass | Isotopes - and their masses |
| Aluminum - Al(27) | 26.981541 | None |
| Argon - Ar(40) | 39.962383 | Ar(36) 35.967546 Ar(38) 37.962732 |
| Beryllium - Be(9) | 9.012183 | None |
| Boron - B(11) | 11.009305 | B(10) 10.012938 |
| Carbon - C(12) | 12.000000 | C(13) 13.003355 |
| Chlorine - Cl(35) | 34.968853 | Cl(37) 36.965903 |
| Chromium - Cr(52) | 51.940510 | Cr(50) 49.946046 Cr(53) 52.940651 Cr(54) 53.938882 |
| Cobalt - Co(59) | 58.933198 | None |
| Copper - Cu(63) | 62.929599 | Cu(65) 64.927792 |
| Fluorine - F(19) | 18.998403 | None |
| Helium - He(4) | 4.002603 | He(3) 3.016029 |
| Hydrogen - H(1) | 1.007825 | H(2) 2.014102 |
| Iron - Fe(56) | 55.934939 | Fe(54) 53.939612 Fe(57) 56.935396 Fe(58) 57.933278 |
| Lithium - Li(7) | 7.016005 | Li(6) 6.015123 |
| Magnesium - Mg(24) | 23.985045 | Mg(25) 24.985839 Mg(26) 25.982595 |
| Manganese - Mn(55) | 54.938046 | None |
| Neon - Ne(20) | 19.992439 | Ne(21) 20.993845 Ne(22) 21.991384 |
| Nickel - Ni(58) | 57.935347 | Ni(60) 59.930789 Ni(61) 60.931059 Ni(62) 61.928346 Ni(64) 63.927968 |
| Nitrogen - N(14) | 14.003074 | N(15) 15.000109 |
| Oxygen - O(16) | 15.994915 | O(17) 16.999131 O(18) 17.999159 |
| Phosphorus - P(31) | 30.973763 | None |
| Potassium - K(39) | 38.963708 | K(40) 39.963999 K(41) 40.961825 |
| Scandium - Sc(45) | 44.955914 | None |
| Silicon - Si(28) | 27.976928 | Si(29) 28.976496 Si(30) 29.973772 |
| Sodium - Na(23) | 22.989770 | None |
| Sulfur - S(32) | 31.972072 | S(33) 32.971459 S(34) 33.967868 S(36) 35.967079 |
| Titanium - Ti(48) | 47.947947 | Ti(46) 45.952633 Ti(47) 46.951765 Ti(48) 47.947947 Ti(49) 48.947871 Ti(50) 49.944786 |