Element/halogens

Atomic Symbol	Element	Protons	Electrons	Neutrons	Atomic weight
 	 	9 	9 	9 	18
 	 	9 	9 	10 	19
 	 	17 	17 	18 	35
 	 	17 	17 	20 	
 	 	35 	35 	44 	80
 	 	35 	35 	45 	
 	 	35 	35 	46 	
 	 	53 	53 	70 	127
 	 	53 	53 	72 	
 	 	53 	53 	74 	
 	 	53 	53 	76 	
 	 	53 	53 	78 	
 	 	85 	85 	125 	210
 	 	85 	85 	126 	
 	 	117 	117 	177 	294
Category:Elements