The nucleus of the element $_{21}E^{45}$ contains
- A$45$ protons and $21$ neutrons
- B$21$ protons and $24$ neutrons
- C$21$ protons and $45$ neutrons
- D$24$ protons and $21$ neutrons
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Similar Questions
Match the following columns:
$(i) \ _{26}Fe^{54}, \ _{26}Fe^{56}, \ _{26}Fe^{58}$ $(a) \ \text{Isotopes}$ $(ii) \ _1H^3, \ _2He^3$ $(b) \ \text{Isotones}$ $(iii) \ _{32}Ge^{76}, \ _{33}As^{77}$ $(c) \ \text{Isoelectronic}$ $(iv) \ _{92}U^{235}, \ _{90}Th^{231}$ $(d) \ \text{Isobars}$ $(v) \ _1H^1, \ _1D^2, \ _1T^3$
| $(i) \ _{26}Fe^{54}, \ _{26}Fe^{56}, \ _{26}Fe^{58}$ | $(a) \ \text{Isotopes}$ |
| $(ii) \ _1H^3, \ _2He^3$ | $(b) \ \text{Isotones}$ |
| $(iii) \ _{32}Ge^{76}, \ _{33}As^{77}$ | $(c) \ \text{Isoelectronic}$ |
| $(iv) \ _{92}U^{235}, \ _{90}Th^{231}$ | $(d) \ \text{Isobars}$ |
| $(v) \ _1H^1, \ _1D^2, \ _1T^3$ |
Medium
View SolutionFind the correct set with isoelectronic species.
The atomic number of an element is always equal to
Easy
View SolutionWhich of the following is correct?
Which one of the following is not an iso-electronic pair?
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