Email
Chat with tutors
Login
Ask Questions, Get Answers
Menu
X
home
ask
tuition
questions
practice
papers
mobile
tutors
pricing
X
Recent questions tagged quantum-mechanical-model
Questions
In which electronic level,the H atom can absorb the photon but cannot emit a photon?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q43
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
In potassium atom,electronic energylevel is in the order:
sat
atomic-structure
jeemain
chemistry
physical-chemistry
class11
unit2
quantum-mechanical-model
q42
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Out of first 100 elements,number of elements having electrons in 3d-orbitals are
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q41
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Which will be the most stable among $Cu^{+},Fe^+,Fe^{2+}$ and $Fe^{3+}$
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q40
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Determine the element of lowest atomic number that contains a complete d subshell in the ground state.
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q39
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
In ground state of $_{24}Cr$
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q38
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
How many unpaired electrons are there in $Ni^{2+}$
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q37
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
The magnetic moment of electron in an atom(excluding orbital magnetic moment) is given by
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q36
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Which of the following ions has the highest magnetic moment ?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q35
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Magnetic moment of $Fe^{a+}(z=26)$ is $\sqrt{24}$BM.Hence number of unpaired electrons and value of a respectively are :
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q34
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Magnetic moments of $V(Z=23), \;Cr(Z=24),\;Mn(Z=25)$ are $x,\;y,\;z$ , respectively. Hence,
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q33
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Which of the following has the maximum number of unpaired electrons?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q32
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Which is correct paramagnetic order?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q31
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
The correct ground state electronic configuration of chromium atom is
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q30
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Which electronic level would allow a H-atom to absorb a photon but not to emit a photon ?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q29
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Which subshell has maximum energy (polyelectronic system)?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q28
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
The number of d-electrons present in $Fe^{2+}$ is
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q27
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
Total number of nodal planes are same in
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q26
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
If the total energy of an electron in a hydrogen like atom in an excited state is -3.4eV then the debroglie wavelength of the electron is
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q23
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
The work function for a metal is 4eV.To emit a photon-electron of zero velocity from the surface of the metal,the wavelength of incident light should be
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q22
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
A hydrogen atom in the ground state is hit by a particle exciting the electron to 4s orbital.The electron then drops to 2s orbital.What is the frequency of radiation emitted and absorbed in the process?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q5
medium
asked
Jan 9, 2014
by
sreemathi.v
1
answer
Calculate the velocity of electron ejected from platinum surface when radiation of 200nm fall on it. Work function of platinum is 5eV. $(1eV=1.6\times 10^{-19}J$)
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q3
medium
asked
Jan 9, 2014
by
sreemathi.v
1
answer
A 100W power source emits green light at a wavelength $\lambda=5000\overset{\circ}{A}$. How many photons per minute are emitted by the source?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q2
medium
asked
Jan 9, 2014
by
sreemathi.v
1
answer
Page:
« prev
1
2
3
Home
Ask
Tuition
Questions
Practice
Your payment for
is successful.
Continue
...