Advertisements
Advertisements
Question
Composition of the nuclei of two atomic species A and B is given as under :
| A | B | |
| Protons : | 18 | 20 |
| Neutrons : | 22 | 20 |
Give the mass numbers of A and B. What is the relation between the two species and which element or elements they represent ?
Solution
Mass number is the sum of the number of neutrons and the number of protons. So, mass number of A and B is 40. As the mass number of A and B is same, the two are isobars.
Therefore, A represents (`""_18^40"Ar"`) Argon while B represents (`""_20^40"Ca"`) Calcium.
APPEARS IN
RELATED QUESTIONS
Explain the Isobars with example.
What is the name given to elements with the same mass number and different atomic number?
Which of the following are isotopes and which are isobars ?
Argon, Deuterium, Calcium, Tritium, Protium
The atomic species A and B have different number of protons but the same number of nucleons. On the other hand, the atomic species X and Y have the same number of protons but different number of nucleons. Which pair is an example of isobars ? Why ?
Which of the following pairs are isobars ?
(i) `""_26^58"A"`, `""_28^58"B"`
(ii) `""_35^79"X"`, `""_35^80"Y"`
Give reasons for your choice.
Calcium and Argon are examples of a pair of ______.
Isotopes have same ———but different———.
Define Isobars. Give example.
Distinguish isotopes from isobar.
Distinguish isotopes from isobars.
