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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 positively charged particle present in the atoms of all the elements.
What is the absolute mass and charge of a proton?
All the gases from cathode rays anode rays when electricity is passed through them :
What does the formation of anode rays tell us about the atoms?
Which sub-atomic particle was discovered by Goldstein.
Name the sub-atomic particle whose charge is +1.
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 |
Define: Proton
Define: Electron
Represent an electron ‘e’ in term of its symbol showing the subscript and superscript value.
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 |
