Element/other

Atomic Symbol	Element	Protons	Electrons	Neutrons	Atomic weight
	Hydrogen	1	1	0	1
				1
				2
	Carbon	6	6	5	12
				6
				7
				8
	Nitrogen	7	7	7	14
				8
	Oxygen	8	8	8	16
				9
				10
	Phosphorus	15	15	16	31
				17
	Sulfur	16	16	16	32
				17
				18
				19
				20
	Selenium	34	34	40	79
				41
				42
				43
				44
				45
				46
				48