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Elements for Kids

Halogens

The halogens are a group of elements in the periodic table. They are located to the right of the other nonmetals and to the left of the noble gases. Elements in the halogen group have seven electrons in their outer shells giving them many unique properties.

What elements are halogens?

The halogens include the five elements fluorine, chlorine, bromine, iodine, and astatine. They make up column 17 of the periodic table.

What are the similar properties of halogens?

Halogens share many similar properties including: Phases Under Standard Conditions

Under standard conditions, the halogens exist in all three main phases of matter: Iodine and astatine are solids; bromine is a liquid; and fluorine and chlorine are gases. The only other element to be a liquid at room temperature is mercury.

Order of Abundance

All of the halogens can be found in the Earth's crust. Fluorine and chlorine are fairly abundant with iodine and bromine being somewhat rare. Astatine is extremely rare and is considered one of the rarest naturally occurring elements on Earth.

Here is the order of abundance in the Earth's crust:
  1. Fluorine
  2. Chlorine
  3. Bromine
  4. Iodine
  5. Astatine
Interesting Facts about Halogens Activities

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More on the Elements and the Periodic Table

Elements
Periodic Table

Alkali Metals
Lithium
Sodium
Potassium

Alkaline Earth Metals
Beryllium
Magnesium
Calcium
Radium

Transition Metals
Scandium
Titanium
Vanadium
Chromium
Manganese
Iron
Cobalt
Nickel
Copper
Zinc
Silver
Platinum
Gold
Mercury
Post-transition Metals
Aluminum
Gallium
Tin
Lead

Metalloids
Boron
Silicon
Germanium
Arsenic

Nonmetals
Hydrogen
Carbon
Nitrogen
Oxygen
Phosphorus
Sulfur
Halogens
Fluorine
Chlorine
Iodine

Noble Gases
Helium
Neon
Argon

Lanthanides and Actinides
Uranium
Plutonium

More Chemistry Subjects

Matter
Atom
Molecules
Isotopes
Solids, Liquids, Gases
Melting and Boiling
Chemical Bonding
Chemical Reactions
Radioactivity and Radiation
Mixtures and Compounds
Naming Compounds
Mixtures
Separating Mixtures
Solutions
Acids and Bases
Crystals
Metals
Salts and Soaps
Water
Other
Glossary and Terms
Chemistry Lab Equipment
Organic Chemistry
Famous Chemists


Science >> Chemistry for Kids >> Periodic Table


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