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