Which of the following are pairs of isotopes?

  • A
    $_{1}^{2}H^{+}$ and $_{1}^{3}H$
  • B
    $_{1}^{3}H$ and $_{2}^{4}H^{-}$
  • C
    $_{2}^{3}He$ and $_{2}^{4}He$
  • D
    Both $(a)$ and $(c)$

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Similar Questions

Identify the isoelectronic species from the following groups.

The total number of isoelectronic species from the given set is $.......$
$O^{2-}, F^{-}, Al, Mg^{2+}, Na^{+}, O^{+}, Mg, Al^{3+}, F$

Which of the following species is $NOT$ isoelectronic with neon?

The number of protons,neutrons and electrons in ${ }_{71}^{175} Lu$,respectively,are:

Match the following species with their respective number of electrons:
| Species | Number of electrons |
| :--- | :--- |
| $(a)$ $O^{2-}$ | $(i)$ $18$ |
| $(b)$ $Li^{2+}$ | (ii) $2$ |
| $(c)$ $He$ | (iii) $10$ |
| $(d)$ $Ca^{2+}$ | (iv) $1$ |

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