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chemistry
elements
ELEMENT | SYMBOL | ATOMIC NUMBER | NUMBER OF PROTONS | NO. OF ELECTRONS | MASS NO. | NO. OF NUETRONS | ELECT. CONFIG. |
---|---|---|---|---|---|---|---|
nitrogen | N | 7 | 7 | 7 | 14 | 7 | |
oxygen | O | 8 | 8 | 8 | 16 | 8 | |
flourine | F | 9 | 9 | 9 | 19 | 10 | |
neon | Ne | 10 | 10 | 10 | 20 | 10 | |
sodium | Na | 11 | 11 | 11 | 23 | 12 | |
magnesium | Mg | 12 | 12 | 12 | 24 | 12 | |
aluminum | Al | 13 | 13 | 13 | 27 | 14 | |
silicon | Si | 14 | 14 | 14 | 28 | 14 | |
phosphurus | P | 15 | 15 | 15 | 31 | 16 | |
sulphur | S | 16 | 16 | 16 | 32 | 16 | |
chlorine | Cl | 17 | 17 | 17 | 35 | 18 | |
argon | Ar | 18 | 18 | 18 | 40 | 22 | |
potassium | k | 19 | 19 | 19 | 39 | 20 | (2,8,8,1) |
calcium | Ca | 20 | 20 | 20 | 40 | 20 | (2,8,8,2) |
hydrogen | H | 1 | 1 | 1 | 1 | 0 | (1) |
helium | He | 2 | 2 | 2 | 4 | 2 | (2) |
lithium | Li | 3 | 3 | 3 | 7 | 4 | (2,1) |
beryleum | Be | 4 | 4 | 4 | 9 | 5 | (2,2) |
boron | B | 5 | 5 | 5 | 11 | 6 | (2,9) |
carbon | C | 6 | 6 | 6 | 12 | 6 |