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Spherically symmetrical orbital is:
NET
NUST Entry Test
Chemistry
Atomic Structure
An orbital can accommodate maximum of:
NET
NUST Entry Test
Chemistry
Atomic Structure
Which of the following orbitals will be filled first?
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NUST Entry Test
Chemistry
Atomic Structure
Bohr's model of atom was contradicted by:
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NUST Entry Test
Chemistry
Atomic Structure
Spin quantum number was given by:
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NUST Entry Test
Chemistry
Atomic Structure
Total number of d-electrons in an atom of atomic number 26 is:
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NUST Entry Test
Chemistry
Atomic Structure
Which of the following orbitals is not possible?
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NUST Entry Test
Chemistry
Atomic Structure
The values of quantum number for 3p orbitals are:
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NUST Entry Test
Chemistry
Atomic Structure
Orbitals having same energy are called:
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NUST Entry Test
Chemistry
Atomic Structure
When 6d orbital is complete, entering electron goes into:
NET
NUST Entry Test
Chemistry
Atomic Structure
Quantum number values of 2p orbitals are:
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NUST Entry Test
Chemistry
Atomic Structure
It is impossible to specify, simultaneously and precisely, the momentum and position of electron.It is called:
NET
NUST Entry Test
Chemistry
Atomic Structure
Uncertainty principle was stated by:
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NUST Entry Test
Chemistry
Atomic Structure
Davisson and Germer proved that accelerated electrons undergo diffraction, like waves, when they fall on:
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NUST Entry Test
Chemistry
Atomic Structure
Wave nature of moving electron was verified by:
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NUST Entry Test
Chemistry
Atomic Structure
All particles of matter have a dual character, wave and material particle, this was proposed by:
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NUST Entry Test
Chemistry
Atomic Structure
In 1913, Mosley used the x-rays to determine:
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Chemistry
Atomic Structure
X-rays were discovered by:
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Chemistry
Atomic Structure
X-rays are attracted towards:
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NUST Entry Test
Chemistry
Atomic Structure
X-rays have same nature as:
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NUST Entry Test
Chemistry
Atomic Structure
Angular momentum of hydrogen electron is:
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NUST Entry Test
Chemistry
Atomic Structure
The spectrum of radiation from which particular radiation has been absorbed after passing through absorbing substance is called:
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NUST Entry Test
Chemistry
Atomic Structure
When spectrum of hydrogen is taken in magnetic field some new lines are created called:
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Chemistry
Atomic Structure
The sunlight shows the type of a:
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NUST Entry Test
Chemistry
Atomic Structure
Which of the following series of lines in the atomic emission spectrum of hydrogen is in the visible region:
NET
NUST Entry Test
Chemistry
Atomic Structure
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