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