Advertisements
Advertisements
Question
The number of protons, neutrons and electrons in particles A to E are given below :
Particle | Protons | Neutrons | Electrons |
A | 17 | 18 | 17 |
B | 3 | 4 | 2 |
C | 18 | 22 | 18 |
D | 17 | 20 | 17 |
E | 9 | 10 | 10 |
Giving reasons, find a pair of isotopes from the above particles.
Solution
Here, A and D are isotopes as they have the same number of protons but different number of neutrons.
APPEARS IN
RELATED QUESTIONS
State whether the following statement is true or false :
Radioactive isotope of iodine is used for making the medicine called tincture iodine.
Give one use each of the following radioactive isotopes :
(a) Uranium-235
(b) Cobalt-60
What is the reason for the identical chemical properties of all the isotopes of an element ? Explain with the help of an example.
Chlorine is an element of atomic number 17. It is a mixture of two isotopes having mass number of 35 and 37.
- What is meant by “atomic number of an element”? What do you understand by an ‘atom’
- Write down the electronic configuration of the chlorine atom.
- State the number of protons, electrons, and neutrons in the following isotopes: 35Cl17, 37Cl17
- Explain why the two atoms in (iii) above have the same chemical reactions.
- If molten magnesium chloride is electrolyzed suggest a suitable electrode [anode].
What are isotopes?
Define isotopes. Give example.
Name the radioactive isotope used to find the age of fossils. Name the radioactive radiation which it emits?
Identify the pairs which are not of isotopes?
(i) 126X, 136Y
(ii) 3517X, 3717Y
(iii) 146X, 147Y
(iv) 84X, 85Y
In two isotopic species, a number of protons is the same but the number of ______ is different.
Distinguish isotopes from isobar.