they are all very reactive and poisonous
The halogens are the most reactive nonmetals. They belong to Group 17 on the periodic table.
Metalloids are 7 and other nonmetals are 17.
Group 17 (known as Halogens)
1. After the obsolete USA system group 7A contain nonmetals. 2. After the modern IUPAC rules group 7 contain metals (A and B doesn't exist now).
Halogens family have 7 valence electrons.They belongs to family 17 on the periodic table.They are highly reactive as they accept electron readily to complete their shell.
The halogens are the most reactive nonmetals. They belong to Group 17 on the periodic table.
Halogens.
Group 7. Fluorine, which belongs to group 7, is the most reactive element.
The most chemically nonmetals are on group 7 of the peridic table e.g:F,CL,BR,I
The Halogens.
The more common name for group 7 metals is the halogens. This group includes elements such as fluorine, chlorine, bromine, iodine, and astatine. Halogens are highly reactive nonmetals that readily form salts with metals.
Metalloids are 7 and other nonmetals are 17.
Group 17 (known as Halogens)
No, the lithium family is not a reactive group of mostly nonmetals with 7 valence electrons. The lithium family, also known as the alkali metals group, includes lithium, sodium, potassium, rubidium, cesium, and francium. These elements are metals and have 1 valence electron.
group 17
The group that contains elements with 7 valence electrons is called the halogens. This group includes elements like fluorine, chlorine, bromine, iodine, and astatine. Halogens are highly reactive nonmetals that readily form salts with metals.
group 17 or group 7 depending whether you're counting transition elements.