halogens
Chlorine, bromine, iodine
Halogens are the five chemical elements in group 17 of the periodic table: fluorine, chlorine, bromine, iodine, and astatine.
They share properties—high reactivity, tendency to form salts with metals, and existence as diatomic molecules.
The name means "salt-producing." Chlorine and fluorine are the most commonly encountered, used in water treatment, refrigerants, and countless industrial processes.
Element thirty-five, liquid halogen
- iodineAntiseptic element, atomic fifty-three
- astatineRadioactive element 85
- periodic tableSystematic display of elements
- nonmetalElement without conductivity
diatomic · electronegativity · reactivity · volatility · corrosive · toxicity · pale yellow · red-brown
Disinfecting with a halogen
- brominationAdding bromine to molecules
- bleachChemical stain and germ killer
- water treatmentCleaning supply for consumption
- sterilizationComplete elimination of microbes
sanitization · germicide · bactericide · antiseptic · biocide · antimicrobial · purification · decontamination
NaCl compound
- potassium iodideCrystalline thyroid-shielding compound
- hydrochloric acidCorrosive hydrogen chloride solution
- CFCsOzone-depleting compounds, abbreviated
- fluorocarbonsCarbon-halogen chemical compounds
bromides · iodides · chlorides · fluorides · salt · halogenated
Rounded storage organ
- filamentVery thin thread
- tungstenElement seventy-four
- quartzCrystalline silicon dioxide
- incandescentGlowing from heat
brightness · spotlight · headlight · warmth · dimmer · floodlight · track lighting · desk lamp
bromine
Element thirty-five, liquid halogen
- iodineAntiseptic element, atomic fifty-three
- astatineRadioactive element 85
- periodic tableSystematic display of elements
nonmetal · diatomic · electronegativity · reactivity · volatility · corrosive · toxicity · pale yellow · red-brown · purple
chlorination
Disinfecting with a halogen
- brominationAdding bromine to molecules
- bleachChemical stain and germ killer
- water treatmentCleaning supply for consumption
sterilization · sanitization · germicide · bactericide · antiseptic · biocide · antimicrobial · purification · decontamination · tincture
sodium chloride
NaCl compound
- potassium iodideCrystalline thyroid-shielding compound
- hydrochloric acidCorrosive hydrogen chloride solution
- CFCsOzone-depleting compounds, abbreviated
fluorocarbons · bromides · iodides · chlorides · fluorides · salt · halogenated
bulb
Rounded storage organ
incandescent · brightness · spotlight · headlight · warmth · dimmer · floodlight · track lighting · desk lamp · wattage
- lightinglamp, lamps, bulbs, light bulb, light bulbs
- chemistry termscarbon, nitrogen, oxygen, sulfur, phosphorus
- main group elementshydrogen, helium, lithium, beryllium, boron
- Periodic Table HistoryMendeleev, atomic number, Meyer, transuranic elements, Glenn Seaborg
- Inorganic Chemistrytransition metals, periodic table, ligand field theory, alkali metals, noble gases
- element groupsalkali metals, noble gases, transition metals, lanthanides, actinides
halogensnoble gases
Nonreactive elemental group
inert gases · helium · neon · argon · krypton
halogensalkali metals
Highly reactive soft elements
metals · metallic elements · lithium · sodium · potassium
- halogen bulbGas-enhanced incandescent light source
- halogen lampGas-enhanced filament bulb
- halogen lightGas-filled incandescent lamp
- halogen heaterLamp-based warming device