The ions O2–, F–, Na+, Mg2+ and Al3+ are isoelectronic. Their ionic radii show
The orbital diagram in which the Aufbau principle is violated is :
If a proton and α-particle are accelerated through the same potential difference, the ratio of de-Broglie wavelengths λp and λα is
The ratio of magnetic moments of Fe(III) and Co(II) is
The number of nodal planes in a px orbital is
The size of isoelectronic species C4–, N3– and Mg2+ is affected by
In hydrogen atom, energy of first excited state is –3.4 eV. Find out KE of the same orbit of Hydrogen atom