Atomic Structure

JEE Main Chemistry · 12 questions

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• Consider two radiations of wavelengths 1. λ_1=2000 2. λ_2=6000 The ratio of the energies of these two radiations ((E_1)/(E_2)) is…20268 April, Shift 2 · Q73
• The Bohr radius of a hydrogen like species is 70.53 pm. The species and the stationary state (n) are respectively (Given:…20266 April, Shift 2 · Q52
• If shortest wavelength of hydrogen atom in Lyman series is x, then longest wavelength in Balmer series of He^+ is:20266 April, Shift 1 · Q52
• Match the LIST-I with LIST-II Choose the correct answer from the options given below:20266 April, Shift 1 · Q53
• Which of the following statement(s) is/are true? A. If two orbitals have the same value of (n+l), the orbital with lower value of…20265 April, Shift 2 · Q52
• Arrange the following atomic orbitals of multi electron atoms in order of increasing energy. A. n=3, l=2, m=+1 B. n=4, l=0, m=0…20265 April, Shift 1 · Q52
• Identify the correct statements from the following: A. Heisenberg uncertainty principle is applicable to electrons. B. The size…20265 April, Shift 1 · Q53
• The species having identical radii according to the Bohr's theory are: A. H (first orbit) B. He^+ (first orbit) C. He^+ (Second…20264 April, Shift 2 · Q52
• What is the ratio of wave number of first line (lowest energy line) of Balmer series of H atomic spectrum to first line of its…20264 April, Shift 1 · Q52
• Which of the following is correct set of 4 quantum numbers of 19^th electron in Chromium (Atomic number =24 ) in accordance with…20264 April, Shift 1 · Q53
• The surface of sodium metal is irradiated with radiation of wavelength x nm. The kinetic energy of ejected electrons is 2.8 ×…20262 April, Shift 2 · Q71
• What is the energy (in J atom ^-1 ) required for the following process? Li^2+(g) → Li^3+(g)+e^- (Take the ionization energy for…20262 April, Shift 1 · Q52