Chapter 02: Atomic Structure
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Quantum Numbers
Q.1
The quantum number 'm' of a free gaseous atom is associated with:
Q.2
When 3d subshell is completely filled, the next entering electron goes into:
Q.3 Quantum number values for 2p orbitals are:
Q.4 An electron having the set of values: n = 4, l = 0, m = 0 and s = +1/2 lies in:
Q.6
The correct order of first ionization energies is:
Q.7
Ap orbital has a characteristic shape with how many lobes?
Q.9
How many d orbitals are there in a given energy level?
Q.10
What information does the principal quantum number (n) gives us about orbitals:
Q.11
How many unpaired electrons are present in an atom of cobalt?
Q.12
Square root of the frequency of X-rays is atomic number:
Q.13
Number of neutrons present in 3, CI
Q.14
How many electrons are present in 32Sг?
Q.15
Select isotopes from the following: 32S
Q.16
Atoms having same atomic number but different mass number are called:
Q.17
Atoms having same atomic mass but different atomic number are called:
Q.18 Mass of neutron in amu is:
Q.19
If we remove. electrons from an atom until the nucleus is left, then it is called:
Q.20
1s* ionization energy is:
Q.21
The value for (n): Principal quantum number can not be:
Q.22
Formula for calculating the value of l (Azimuthal quantum number):
Q.23
Number of electrons in a sub-shell can be measured by:
Q.24
How many sub shells are present in M- shell?
Q.25
s-subshell has
Q.26
An orbital can many electrons?
Q.27 Orbitals having same called:
Q.28
The value of "m" cannot be:
Q.29 Two electrons in the same orbital have:
Q.30
Electronic cloud around the nucleus is uniformly distributed in all directions in _ subshell.
Q.31 The shape of d-orbitals are like:
Q.32
The space orientation for f-subshell is?
Q.33
How many d-orbitals are showing their lobes along axis?
Q.34 If n = 3, then electrons in this shell are:
Q.35
Subshells in an atom are filled with electrons in an increasing order of their energy values called:
Electronic Configuration
Q.36
In which subshell electrons are filled first according to n+l rule?
Q.37
38. | 37. No two electrons in an atom have same , this is all four quantum numbers, called:
Q.38
Which of the following atoms show anomalous configuration?
Q.39
An element having 14 electrons, black: present in
Q.40
d-block elements are also called: