The number of protons,neutrons,and electrons in the element $_{89}X^{231}$ are respectively:
- A$89, 231, 89$
- B$89, 89, 242$
- C$89, 142, 89$
- D$89, 71, 89$
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Similar Questions
The phosphide ion has an electronic structure similar to that of:
Easy
View SolutionMatch the following species with the correct number of electrons present in them:
Species Number of Electrons $(i) Be^{2+}$ $(a) 0$ $(ii) H^{+}$ $(b) 10$ $(iii) Na^{+}$ $(c) 2$ $(iv) Mg^{+}$ $(d) 11$
| Species | Number of Electrons |
|---|---|
| $(i) Be^{2+}$ | $(a) 0$ |
| $(ii) H^{+}$ | $(b) 10$ |
| $(iii) Na^{+}$ | $(c) 2$ |
| $(iv) Mg^{+}$ | $(d) 11$ |
The difference between $_{17}Cl^{35}$ and $_{17}Cl^{37}$ is in the:
Medium
View SolutionIf a neutral atom has $2, 8,$ and $5$ electrons in $K, L,$ and $M$ shells respectively,what is its atomic number?
Medium
View SolutionWhich of the following has an isotopic number (neutron number) equal to that in $_{13}^{27}Al$?
Easy
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