Practice free Atomic Structure (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following statements is/are correct?
Isotopes are atoms of the same element with different numbers of neutrons. Isobars are atoms of different elements with the same mass number (number of protons plus neutrons). Isotones are atoms of different elements with the same number of neutrons.
According to Bohr’s Model of hydrogen atom
According to Bohr's model of the hydrogen atom, the total energy of the electron is quantized (allowed only certain discrete values), and the angular momentum of the electron is also quantized and given by the expression $ \sqrt{l(l+1)}\frac{h}{2\pi} $, where l is the angular momentum quantum number and h is Planck's constant.
Rutherford’s experiment established that
The correct Schrodinger’s wave equation for an electron with E as total energy and V as potential energy is
Which of the following expressions imposes the condition of quantization of energy of an electron in an atom?
The expression $mvr = \frac{nh}{2\pi}$ imposes the condition of quantization of energy of an electron in an atom, where m is the mass of the electron, v is its velocity, r is the radius of the orbit, n is an integer (principal quantum number), and h is Planck's constant. This condition arises from the quantization of angular momentum.
The total number of electrons in a subshell designated by azimuthal quantum number, l is given as
According to Bohr’s model of the atom, an electron can revolve around the atomic nucleus in a suitable orbit without emitting energy if its orbit
According to Bohr's model, an electron can revolve around the nucleus in a stable orbit without emitting energy if the orbit houses a whole number of de Broglie waves. This condition is known as the quantization of angular momentum.
According to Somerfield’s model, only circular orbit is possible for the electron in
According to Sommerfeld's modification of Bohr's atomic model, only circular orbits are possible for electrons in the K shell. For higher shells (L, M, N, etc.), elliptical orbits are also allowed.
According to Bohr’s atomic model
The transition of electrons inH atom that will emit maximum energy is
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