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Question
Define: Electron
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Solution
Electron = e = is subatomic particle revolving around the nucleus of an atom having
unit – ve charge, mass = 1/1840 of 1 hydrogen atom, and the number of electrons = number of protons.
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There are two species represented as 35Cl and 37Cl. Which of the following statement is correct regarding these species ?
Name the gas which produces anode rays consisting of protons in the discharge tube experiment.
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 |
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146 |
92 |
|
S |
`""_9^19"F"` |
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10 |
9 |
Explain the following:
Mass of an atom is concentrated inside the nucleus of the atom.
Complete the Table on the basis of information available in the symbols given below
- `""_17^35"Cl"`
- `""_6^12"C"`
- `""_35^81"Br"`
| Element | np | nn |
Assertion: Proton can be defined as a hydrogen ion (H+).
Reason: These photons are produced when one electron is removed from one hydrogen atom.
The nature of anode rays depends upon ______.
