Welcome to your Atomic Struscture
1.
Set of isoelectronic species is:
2.
Atomic number of element is 35. What is the total number of electrons present in all p-orbitals of the ground state atom?
3.
Total energy of the electron in first orbit of hydrogen atom is:
4.
Angular momentum of electron in Bohr orbit:
5.
Which one of the following expressions represents electron probability function D?
6.
Set of isoelectronic species is:
7.
Configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ represents:
8.
Millikan’s oil drop method is used to determine
9.
The atomic number of an element is 17. The number of orbitals electron pairs in its valence shell is:
10.
Millikan’s oil drop method is used to determine
11.
Quantum numbers +½ and –½ represent:
12.
In which orbital is angular momentum of electron zero?
13.
The radius of hydrogen atom is 0.53 Å. The radius of Li²⁺ ion is:
14.
The correct set of quantum numbers is:
15.
What is the packet of energy called?
16.
Preparation of ethyl acetoacetate involves?
17.
Benzoic acid to benzene: X? Phenol to benzene: Y?
18.
To explain the structure of atom the first use of quantum theory was made by
19.
The values of four quantum numbers of an electron of an element are n = 4, l = 0, m = 0, s = +1/2. The element is:
20.
Chromium is represented by configuration
21.
Which of the following is not possible?
22.
Which element has least number of electrons in M-shell?
23.
To explain the structure of atom the first use of quantum theory was made by
24.
Effective magnetic moment of Sc³⁺ ion is:
25.
Quantum numbers of an atom can be defined on basis of:
26.
Dual nature of particles was given by:
27.
Which of the following pairs are both ions coloured in aqueous solution?
28.
When potassium metal is exposed to violet light:
29.
The values of four quantum numbers of an electron of an element are n = 4, l = 0, m = 0, s = +1/2. The element is:
30.
Dual nature of particles was given by:
31.
Number of orbitals in L energy level
32.
Standard for atomic mass is:
33.
Atomic number of element is 35. What is the total number of electrons present in all p-orbitals of the ground state atom?
34.
Wavelength of spectral line emitted is inversely proportional to
35.
An element has 2 electrons in K-shell, 8 in L-shell, 13 in M-shell and 1 electron in N-shell. The element is:
36.
Most probable radius (pm) of electron in He⁺ is:
37.
Configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s¹ represents:
38.
Rutherford’s experiment used:
39.
The incorrect configuration is
40.
Correct representation for d-orbital is:
41.
Which gives CO₂ with NaHCO₃: Acetic acid, phenol, n-hexanol?
42.
Which relates to photons both as waves & particles?
43.
Which forms a colourless solution in aqueous medium?
44.
Ratio of radii of second and first Bohr orbits of H-atom
45.
Outermost configuration of most electronegative element is:
