bcafamilyAtomic structure
77. Which property of an element is always a whole number [2075]
atomic weight
equivalent weight
atomic volume
atomic number
82. Electronic configuration of four element A,b,c,d are as follows, which will be most metallic? [2071]
A = 2,8,4
B = 2,8,8
C = 2,8,1
D = 2,8,1
90. The general Electronic configuration of zinc is [2070]
[Ar]4s23d10
[Ar]4s13d10
[Ar]4s23d8
[Ar]4s23d7
92. Bohr's model was modified by [2070]
Rutherford
Sommerfeld
Dalton
Pauli
96. Electrons will distribute themselves in degenerate orbitals so as to retain parallel spin as much as possible. This is called [2069]
Hund's Rule
Aufbau principle
Uncertainty Principle
Paul's exclusion principle
97. The actual electronic configuration of copper is [2069]
[Ar]4s2d8
[Ar]4s13d10
[Ar]4s23d10
[Ar]4s23d8
