Advertisements
Advertisements
प्रश्न
Define ‘formula mass’ of a compound.
Advertisements
उत्तर
Formula mass of a compound is the relative mass of its 'formula unit' compared to the mass of a carbon-12 atom (which has a mass of exactly 12 units).
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable word:
The particle which is formed by the loss of electrons by an atom is called..............
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
A particle P has 18 electrons, 20 neutrons and 19 protons. This particle must be :
What is an ion ? How is an ion formed ? Explain with the help of two examples of different ions.
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compounds.
Barium sulphate
Name the following:
The radical containing one nitrogen and four hydrogen atoms.
State if the following element or radical is divalent?
Nitride
State if the following element or radical is divalent?
Dichromate
State if the following element or radical is divalent?
Permanganate
Atoms that carry positive or negative charges are called ______.
