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प्रश्न
Define the following term with an example.
Non-metal
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उत्तर
Non-Metal: Non-metal is an element that doesn’t have the characteristics of metal including, (i.e.) ability to conduct heat or electricity luster or flexibility.
Ex. Carbon Iodine, Sulphur.
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संबंधित प्रश्न
ANSWER IN DETAIL
Enlist the features of Bohr’s model of an atom. How did he correct the Rutherford’s model ?
Define:- Radicals
Name three non-metals/radicals which have valency -1, -2, and -3.
Name the particle or particles you would expect to find in :
The orbit of an atom
Name the particle or particles you would expect to find in :
The nucleus of an atom
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Does the particle have an excess of electrons or a deficiency of electrons ?
How many times is a proton heavier than an electron?
Which of the following statement is correct about the atom of an element ?
Draw the basic structure of an atom representing its –
- Subatomic particles
- Nucleus
- Orbits or shells.
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 smaller particles found in the atom is called ______.
Name the sub-atomic particles.
Define the following term with an example.
Metal
The volume occupied by 1 mole of a diatomic gas at S.T.P is ______
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Atoms of different elements having the same number of ______ are called isotones.
Atoms of one element can be transmuted into atoms of other elements by ______
A sample of vitamic C is known to contain 2.58 ×1024 oxygen atoms. How many moles of oxygen atoms are present in the sample?
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
