The atomic number of an element Y is 17. The number of electrons in its ion `Y^(-)` will be:

The atomic number of an element E is 16. The number of electrons in its ion E^(2-) will be :

The atomic number of an element X is 19. The number of electrons in its ion X^(+) will be

The atomic number of an element 'X' is 16.The no. of electrons in its ion E^(2-) will be

If the number of protons in one atom of an element Y is 20, then the number of electrons in its ion Y^(2+) will be:

The atomic number of an element 'X' is 13.What will be the number of electrons in its ion X^(3+)

The atomic number of an element X is 3. What will be the number of electrons in its ions X^(3+) ?

The atomic number of an element is 13. What will be the number of electrons in its ion X3+

The atomic number of an element is 16. Predict the number of valence electrons in its atom

The atomic number of an element is 17. The number of orbitals containing electron pairs in its valence shell is