Advertisements
Advertisements
प्रश्न
An element A forms an oxide A2O5.
What is the valency of element A ?
Advertisements
उत्तर
Element A forms an oxide A2O5. Crossing the valencies, we can see that the valency of O (oxide) is −2 and that of element A is 5.
APPEARS IN
संबंधित प्रश्न
Write down the name of a compound represented by the following formula:
CaCl2
Define: Atomic weight :
Molecular compounds are usually formed by the combination between :
An element X forms the following compounds with hydrogen, carbon and oxygen :
H2X, CX2, XO2, XO3
State the three valencies of element X which are illustrated by these compounds.
Calculate the mass of 3.011 × 1024 atoms of carbon.
Explain the term – molecules. Give three examples of atoms of the same element forming a molecule. State the atomicity of the same.
State the atomicity of the following:
Chlorine
State the atomicity of the following:
Argon
Which of the following is a triatomic molecule?
Define: Atomicity.
