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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.
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.
Name the subatomic particle whose relative charge is : +1
Fill in the blank of the following statement :
The anode rays obtained from hydrogen gas consist of particles called ________
Goldstein's experiments which involved passing high voltage electricity through gases at very low pressure resulted in the discovery of :
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 |
92 |
146 |
92 |
|
S |
`""_9^19"F"` |
9 |
10 |
9 |
Define: Electron
Write the properties of anode rays.
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 |
An atom differs from its ion in ______.
