Question 2 :
Energy of the electron in hydrogen in its first orbit is:
Question 3 :
The total energy of the electron revolving around the nucleus is:
Question 4 :
<div>State True or False.<br/></div>The velocity of the electron is maximum in the Bohr's last orbit.
Question 5 :
Consider a hypothetical hydrogen like atom. The wavelength in $A^o$ for the spectral lines for transition from $n=p$ to $n=1$ are given by:<br/>$\lambda =\displaystyle\frac{1500p^2}{p^2-1},$ where $p > 1$<br/>Find the ionization potential of this element?<br/>
Question 6 :
$E_n = - \dfrac{313.6}{n^2}$, if the value of $E_n = - 34.84$ to which value 'n' corresponds:
Question 7 :
<div>State whether the given statement is true or false:</div><br/>With the increase in distance from the nucleus, energy of electron increases and the velocity of electron decreases.<br/>
Question 9 :
The ratio of $\left({E}_{2}-{E}_{1}\right)$ to $\left({E}_{4}-{E}_{3}\right)$ for the hydrogen atom is approximately equal to:
Question 10 :
If first ionisation energy of hydrogen is $E$, then the ionisation energy of ${ He }^{ + }$ would be:
Question 11 :
If the ionization energy of hydrogen is $313.8 \; {Kcal}/{mol}$, then the energy of electron in ${2}^{nd}$ excited state will be:
Question 12 :
The total energy of an electron in the ground state of the hydrogen atom is -13.6 eV. The kinetic energy of an electron in the first excited state is:<br/>
Question 13 :
In one revolution round the hydrogen nucleus, an electron makes five crests .The electron belongs to<br>
Question 15 :
If elements of quantum number greater than $'n'$ were not allowed, the number of possible elements in nature would have been
Question 16 :
The longest wave length radiation emitted in the emission spectrum when the pion de-excites from n = 3 to ground state lies in which of the following region?
Question 17 :
The total energy of a hydrogen atom in its ground state is $-13.6\ eV$. If the potential energy in the first excited state is taken as zero then the total energy in the ground state will be:
Question 18 :
The ionization energy of hydrogen atom is $13.6$ eV. The longest wavelength of hydrogen spectrum in the ultraviolet region is expected to be: