From kinetic theory, tell the dimension of an atom.
From kinetic theory, tell the dimension of an atom.
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What was the thickness of the gold foil kept in the Geiger-Marsden scattering experiment?
What was the thickness of the gold foil kept in the Geiger-Marsden scattering experiment?
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]
The wavelength of the first line of Lyman series for hydrogen atom is equal to that of the second line of Balmer series for a hydrogen like ion. The atomic number $Z$ of hydrogen like ion is
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In third orbit of hydrogen atom, de Broglie wavelength of electron is $\lambda $ then radius of third orbit is
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$X$-rays incident on a material
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