CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Why are group 7 called Halogens?


Open in App
Solution

  1. The modern periodic table consists of 118 elements in total, till now and they are arranged in accordance with their increasing atomic number.
  2. The table consists of 18 groups and 7 seven periods.
  3. Group 7 elements are placed on the right side of the periodic table vertically.
  4. The group 7 elements are called “Halogens” which is derived from the Greek word “Halo” which means salts and "genes" which means formation.
  5. The halogens are as follows: FluorineF, ChlorineCl, BromineBr, IodineI, and AstatineAt.
  6. The valence shell of such elements requires only one electron, so these elements will tend to form anions and are called halides.
  7. All the elements of halogen are present in their diatomic form, because of one unpaired electron.
  8. Halogens are nonpolar in nature, so they have weak London forces exhibited between the diatomic molecules.
  9. Halogens are highly reactive in nature and are also toxic in nature.

flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Contraceptive Methods
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon