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प्रश्न
Name or state the following.
Two elements having the same number of protons and electrons but a different number of neutrons.
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उत्तर
Two elements are:
Sodium – P = e = 11 n = 12
Chlorine – P = e = 17 n = 18
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संबंधित प्रश्न
Name the subatomic particle whose relative charge is : +1
Goldstein's experiments which involved passing high voltage electricity through gases at very low pressure resulted in the discovery of :
How does cathode ray differ from as anode rays?
What is the significance of the number of protons found in the atoms of different elements?
Explain the following:
Mass of an atom is concentrated inside the nucleus of the atom.
Define: Neutron
Represent a proton ‘p’ in term of its symbol showing the subscript and superscript value.
A proton can be defined as a ______.
What are fluorescent materials?
An atom is electrically neutral. Give reason.
