chemistry character with fluorine

accident alchemy atom atoms attention bonds bone button chemical chemically chemistry chemists concentration drinking electron electrons experiment fertilizers fluoridation fluorides fluorine fluorite fluorspar flux group halogen icon industry ion ions label law main meaning melting metallurgy molecule molecules neutron observation operations organic paint particles periodic pesticide pharmaceuticals phenomenon physical physics plastic plate point production properties property reaction reactions research rule salt science shell shield sign signs structure subareas substances table teeth toxic voltage water