Group 17 elements of the periodic table are called?

The correct answer is Halogens.

Key Points

• The Halogens are a group of six elements of Group 17 in the periodic table.
  • Fluorine (F)
  • Chlorine (Cl)
  • Bromine (Br)
  • Iodine (I)
  • Astatine (At)
  • Tennessine (Ts)
• Halogens are nonmetals.
• Halogens are very reactive, the reactivity decreases from Fluorine to Astatine.
• Physical Properties of Halogens:
  • They have a strong and often nasty smell.
  • They are extremely toxic.
  • They are poor conductors of heat and electricity.
  • They have low melting and boiling points.
• Chemical Properties of Halogens:
  • Their Molecules are diatomic.
  • They have seven valence electrons as their one electron missing, they form negative ions and are highly reactive.
  • They can gain an electron by reacting with atoms of other elements.

Additional Information

• Group 15 of the periodic table is known as Pnictogens (Nitrogen group). The elements are as follows:
  • Nitrogen (N)
  • Phosphorous (P)
  • Arsenic (As)
  • Antimony (Sb)
  • Bismuth (Bi)
• Group 16 of the periodic table is known as Chalcogens (Oxygen group). The elements are as follows:
  • Oxygen (O)
  • Sulphur (S)
  • Selenium (Se)
  • Tellurium (Te)
  • Polonium (Po)
• Group 18 of the periodic table is known as Noble gases. The elements are as follows:
  • Helium (He)
  • Neon (Ne)
  • Argon (Ar)
  • Krypton (Kr)
  • Xenon (Xe)
  • Radon (Rn)