Structure of Atom questions
799 published questions with worked solutions.
- If radius of second Bohr orbit of the He^ + ion is 105.8 pm, what is the radius of third Bohr orbit of Li^ 2+ ion?
- Which of the following is correct set of 4 quantum numbers of 19th electron in Chromium (Atomic number = 24) in accordance with...
- A monoatomic anion (A⁻) has 45 neutrons and 36 electrons. Atomic mass, group in the periodic table and physical state at room...
- The species having identical radii according to the Bohr's theory are: A. H (first orbit) B. He⁺ (first orbit) C. He⁺ (Second...
- 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...
- 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 C....
- Identify the correct statements from the following: A. Heisenberg uncertainty principle is applicable to electrons. B. The size...
- The Bohr radius of a hydrogen like species is 70.53 pm. The species and the stationary state (n) are respectively (Given:...
- Match the LIST-I with LIST-II. List-I (Orbital): A. 2s, B. 3s, C. 3p, D. 4d. List-II (Radial nodes and nodal plane): I. 1 Radial...
- Select the correct statements from the following A. Atoms of all elements are composed of two fundamental particles. B. The mass...
- The relation between n_m, (n_m = the number of permissible values of magnetic quantum number (m)) for a given value of azimuthal...
- Based on Heisenberg's uncertainty principle, the uncertainty in the velocity of the electron to be found within an atomic nucleus...
- Compare the energies of following sets of quantum numbers for multielectron system. (A) n = 4, ℓ = 1 (B) n = 4, ℓ = 2 (C) n = 3,...
- The number of electrons present in all the completely filled subshells having n = 4 and s = +½ is ________. (Where n = principal...
- Match List I with List II. List I (Spectral Series for Hydrogen): A. Lyman, B. Balmer, C. Paschen, D. Pfund List II (Spectral...
- The correct set of four quantum numbers for the valence electron of rubidium atom (Z = 37) is:
- Number of spectral lines obtained in He⁺ spectra, when an electron makes transition from fifth excited state to first excited...
- Given below are two statements Statement (I) : The orbitals having same energy are called as degenerate orbitals. Statement (II)...
- The four quantum numbers for the electron in the outer most orbital of potassium (atomic no. 19) are
- For, n = 5, = (0, 1, 2, 3, 4). If = 4, m = –4, –3, –2, –1, 0, +1, +2, +3, +4 . 5d, 5f and 5g subshell contain one-one orbital...
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