Which one did Rutherford consider to be supported by the results of experiments in which $\alpha - $ particles were scattered by gold foil?
Which one did Rutherford consider to be supported by the results of experiments in which $\alpha - $ particles were scattered by gold foil?
- A
The nucleus of an atom is held together by forces which are much stronger than electrical or gravitational forces
- B
The force of repulsion between an atomic nucleus and an $\alpha - $ particle varies with distance according to inverse square law.
- C
$\alpha - $ particles are nuclei of Helium atoms.
- D
Atoms can exist with a series of discrete energy levels
Similar Questions
Given below are two statements :
$Statement$ $I$ : Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford's model.
$Statement$ $II$ : An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford's model.
In the light of the above statements, choose the most appropriate from the options given below.
Given below are two statements :
$Statement$ $I$ : Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford's model.
$Statement$ $II$ : An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford's model.
In the light of the above statements, choose the most appropriate from the options given below.
- [JEE MAIN 2024]
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
A $10\; kg$ satellite circles earth once every $2 \;hours$ in an orbit having a radius of $8000\; km$. Assuming that Bohr's angular momentum postulate applies to satellites just as it does to an electron in the hydrogen atom, find the quantum number of the orbit of the satellite.
A $10\; kg$ satellite circles earth once every $2 \;hours$ in an orbit having a radius of $8000\; km$. Assuming that Bohr's angular momentum postulate applies to satellites just as it does to an electron in the hydrogen atom, find the quantum number of the orbit of the satellite.
The ratio between total acceleration of the electron in singly ionized helium atom and hydrogen atom (both in ground state) is
The ratio between total acceleration of the electron in singly ionized helium atom and hydrogen atom (both in ground state) is
Which of the following statements are true regarding Bohr's model of hydrogen atom
$(I)$ Orbiting speed of electron decreases as it shifts to discrete orbits away from the nucleus
$(II)$ Radii of allowed orbits of electron are proportional to the principal quantum number
$(III)$ Frequency with which electrons orbits around the nucleus in discrete orbits is inversely proportional to the principal quantum number
$(IV)$ Binding force with which the electron is bound to the nucleus increases as it shifts to outer orbitsSelect correct answer using the codes given belowCodes :
Which of the following statements are true regarding Bohr's model of hydrogen atom
$(I)$ Orbiting speed of electron decreases as it shifts to discrete orbits away from the nucleus
$(II)$ Radii of allowed orbits of electron are proportional to the principal quantum number
$(III)$ Frequency with which electrons orbits around the nucleus in discrete orbits is inversely proportional to the principal quantum number
$(IV)$ Binding force with which the electron is bound to the nucleus increases as it shifts to outer orbitsSelect correct answer using the codes given belowCodes :