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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
Which subatomic particle was discovered by : Goldstein ?
How does a proton differ from an electron?
What is a proton? How does it differ from a neutron?
(a) What are cathode rays? What is the nature of charge on cathode rays?
(b) Explain how, cathode rays are formed from the gas taken in the discharge tube.
(c) What conclusion is obtained from the fact that all the gases from cathode rays?
Goldstein's experiments which involved passing high voltage electricity through gases at very low pressure resulted in the discovery of :
Complete the table given below
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No. of protons |
No. of electrons |
No. of Neutrons |
Atomic Number |
Mass number |
| `""_17^35"CI"` |
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| `""_17^37"CI"` |
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Represent a proton ‘p’ in term of its symbol showing the subscript and superscript value.
Represent an electron ‘e’ in term of its symbol showing the subscript and superscript value.
Is it possible for the atom of an element to have one electron, one proton and no neutron. If so, name the element.
Assertion: Proton can be defined as a hydrogen ion (H+).
Reason: These photons are produced when one electron is removed from one hydrogen atom.
