The name of 16th group elements in the periodic table is ----------- a) Oxygen (or) Chalcogen family b) Carbon family c) Nitrogen (or) Chalcogen family d) Boron family 2) Based on which of the following Henry Moseley demonstrated characteristics of elements.
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----------- a) Oxygen
d) Boron family
elements.
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The name of 16th group elements in the periodic table is : a) Oxygen or Chalcogen Family.
- The main elements present in this group are : Oxygen, Sulphur, Selenium, Tellurium, Polonium.
- The general electronic configuration of the elements are ns² np⁴.
- Hence, all the elements have 6 valence electrons.
- Atomic radii increases down the group.
- Only Oxygen is a gas, rest are all solids.
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