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प्रश्न
Write the full form of IUPAC.
उत्तर
The full form of IUPAC is International Union of Pure and Applied Chemistry.
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संबंधित प्रश्न
TRUE \ FALSE
Elements combine in definite proportions to form compounds.
Define: Ions
Define: Chemical bond
Name the particle or particles you would expect to find in :
The nucleus of an atom
An atom has 13 protons and 14 neutrons.
What is the atomic mass of the atom ?
Why is it not possible to see an atom even with the most powerful microscope ?
How many times is a proton heavier than an electron?
What is the contribution of the following in atomic structure?
Maharshi Kanada
Draw the electron dot structure of this compound.
A radical take part – unsplit in a chemical reaction and retains its identity in reactions.
With reference to the radical –
- ammonium
- bisulphate
- carbonate
state the group of atoms present in each radical.
The electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of phosphorus
The smallest particle of matter that can exist by itself is ______.
Draw the structure of an atom and explain the position of the sub-atomic particles.
An atom of an element has no electron. Will that atom have any mass or not? Can an atom exist without electron? If so then give example.
Define the following term with an example.
Metalloid
Atoms of different elements having the same number of ______ are called isotones.
Does the solubility of a substance change with temperature? Explain with the help of an example.
Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order
- Rutherford’s atomic model
- Thomson’s atomic model
- Bohr’s atomic model
The most abundant type of atom is the universe is ______.
What are the 3 most abundant atoms on the earth?
