Highly reactive because they only have 7 electrons. They need 8 to be a stable element.
Reactivity increases as you go down the group. Radiom is far more reactive than Beryllium.
Non-reactive elements in the periodic table are typically the noble gases, such as helium, neon, and argon. These elements have a full outer electron shell, making them stable and less likely to form chemical bonds. Reactive elements are those that readily form chemical bonds with other elements, such as the alkali metals (e.g. sodium, potassium) and halogens (e.g. fluorine, chlorine).
The highly reactive elements in group 7A, also known as group 17 or the halogens, are fluorine, chlorine, bromine, iodine, and astatine. These elements are known for forming salts by gaining an electron to achieve a full outer electron shell.
Sodium and Chlorine = Sodium Chloride Potassium and Iodine = Potassium Iodide
The halogen group elements are reactive because they have seven valence electrons, making them one electron short of a full outer shell. They are highly reactive and tend to gain an electron through reactions with other elements to achieve a stable electron configuration.
Group 18, also called the noble gases, contains the elements that are nonreactive.
Halogens these are the salt forming elements which are highly reactive
Halogens these are the salt forming elements which are highly reactive
Reactivity increases as you go down the group. Radiom is far more reactive than Beryllium.
Non-reactive elements in the periodic table are typically the noble gases, such as helium, neon, and argon. These elements have a full outer electron shell, making them stable and less likely to form chemical bonds. Reactive elements are those that readily form chemical bonds with other elements, such as the alkali metals (e.g. sodium, potassium) and halogens (e.g. fluorine, chlorine).
The highly reactive elements in group 7A, also known as group 17 or the halogens, are fluorine, chlorine, bromine, iodine, and astatine. These elements are known for forming salts by gaining an electron to achieve a full outer electron shell.
Sodium and Chlorine = Sodium Chloride Potassium and Iodine = Potassium Iodide
The group 18 elements, also called the noble gases, are gaseous elements, completely nonreactive, with a full, stable valence shell. They were the last elements to be discovered because they're inert.
Group 7 elements are halogens. They have seven valance electrons& are highly reactive. They are: -Fluorine -Chlorine -Bromine -Iodine
The alkali metals (Group 1) and the halogens (Group 17) are known to be very reactive elements. Alkali metals react vigorously with water, while halogens are highly reactive nonmetals that readily form compounds with other elements.
The halogen group elements are reactive because they have seven valence electrons, making them one electron short of a full outer shell. They are highly reactive and tend to gain an electron through reactions with other elements to achieve a stable electron configuration.
The elements from the group 12 are not the most reactive chemical elements.