What radioactive source did the Geiger and Marsden use in the scattering experiment?
What radioactive source did the Geiger and Marsden use in the scattering experiment?
Similar Questions
According to the Rutherford’s atomic model, the electrons inside the atom are
According to the Rutherford’s atomic model, the electrons inside the atom are
In the spectrum of hydrogen atom, the ratio of the longest wavelength in Lyman series to the longest wavelength in the Balmer series is
In the spectrum of hydrogen atom, the ratio of the longest wavelength in Lyman series to the longest wavelength in the Balmer series is
Consider the following statements:
$I$. All isotopes of an element have the same number of neutrons.
$II$. Only one isotope of an element can be stable and non-radioactive.
$III$. All elements have isotopes.
$IV$. All isotopes of carbon can form chemical compounds with oxygen-$16$.
Choose the correct option regarding an isotope.
Consider the following statements:
$I$. All isotopes of an element have the same number of neutrons.
$II$. Only one isotope of an element can be stable and non-radioactive.
$III$. All elements have isotopes.
$IV$. All isotopes of carbon can form chemical compounds with oxygen-$16$.
Choose the correct option regarding an isotope.
- [KVPY 2014]
If the force between the electron in the first Bohr orbit and the nucleus (proton) in hydrogen atom is $F$, then the force between them when the electron is in the second orbit is
If the force between the electron in the first Bohr orbit and the nucleus (proton) in hydrogen atom is $F$, then the force between them when the electron is in the second orbit is
The first line in the Lyman series has wavelength $\lambda $. The wavlength of the first line in Balmer series is
The first line in the Lyman series has wavelength $\lambda $. The wavlength of the first line in Balmer series is