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प्रश्न
Is it possible for the atom of an element to have one electron, one proton and no neutron. If so, name the element.
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उत्तर
Yes, hydrogen has one electron, one proton and no neutron. It is represented as `""_1^1"H"`.
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संबंधित प्रश्न
Name the positively charged particle present in the atoms of all the elements.
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?
Name the gas which produces anode rays consisting of protons in the discharge tube experiment.
How does cathode ray differ from as anode rays?
Complete the table given below by identifying P, Q, R and S.
|
Element |
Symbol |
No. of Protons |
No. of neutrons |
No. of Electrons |
|
Sodium |
`""_11^23"NA"` |
11 |
P |
11 |
|
Chlorine |
`""_17^35"CI"` |
Q |
18 |
17 |
|
Uranium |
R |
92 |
146 |
92 |
|
S |
`""_9^19"F"` |
9 |
10 |
9 |
Explain the following:
Mass of an atom is concentrated inside the nucleus of the atom.
Define: Proton
Write the properties of anode rays.
What are fluorescent materials?
