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Recent questions tagged atomic structure
+2
votes
1
answer
Find (a) the total number of protons and (b) the total mass of protons in 34 mg of NH3 at STP.
asked
Apr 7, 2019
in
Chemistry
by
kratos
physical chemistry
class-11
class-12
atomic structure
structure of atom
+1
vote
1
answer
The ratio of the energy of a photon of 2000 A wavelength radiation to that of 4000 radiation is
asked
Apr 7, 2019
in
Chemistry
by
kratos
chemical bonding and molecular structure
class-11
jee
physical chemistry
atomic structure
jee mains
class-12
+1
vote
1
answer
A strong argument for the particle nature of cathode rays is that they
asked
Apr 7, 2019
in
Class 12
by
kratos
neet
jee
aiims
dual nature of radiation and matter
atomic structure
jee mains
class-12
+2
votes
1
answer
Assertion : An n-type semiconductor has a large number of electrons but still it is electrically neutral.
asked
Apr 6, 2019
in
Class 12
by
kratos
semiconductor electronics
neet
electronic device
aiims
atomic structure
class-7
class-12
+1
vote
1
answer
The orbital angular momentum for an electron revolving in an orbit is given by √(l(l + 1)) x h/2π.
asked
Apr 5, 2019
in
JEE
by
kratos
chemical bonding and molecular structure
atomic structure
jee
jee mains
+2
votes
1
answer
The quantum numbers + 1/2 and -1/2 for the electron spin represent
asked
Apr 5, 2019
in
JEE
by
kratos
atomic structure
jee
jee mains
+2
votes
1
answer
Which among the following gases absorb long wavelength infared radiation emitted from the earth'* surface ?
asked
Apr 5, 2019
in
Chemistry
by
kratos
structure of atom
class-11
physical chemistry
atomic physics
atomic structure
class-12
bitsat
+2
votes
1
answer
Determine Bohr'* radius of Li^2+ ion for n = 2. Given (Bohr'* radius of H-atom = a0)
asked
Apr 4, 2019
in
JEE
by
kratos
cbse
jee main 2020
jee main 2021
jee
atomic structure
jee mains
jee main
class-12
atoms
nuclei
+3
votes
1
answer
A 1.0 g particle is shot from a *** with velocity of 100 m/sec. Calculate its de Broglie wavelength.
asked
Apr 4, 2019
in
Chemistry
by
kratos
class-11
class-12
atomic structure
physical chemistry
+3
votes
1
answer
Using the Heisenberg uncertainty principle, arrange the following particles in the order of increasing lowest energy possible.
asked
Apr 4, 2019
in
Class 12
by
kratos
cbse
class-11
dual nature of radiation and matter
atomic structure
class-12
structure of atom
+3
votes
1
answer
what is skeleton equation?
asked
Apr 4, 2019
in
Class 11
by
kratos
class-8
atomic structure
class-11
+2
votes
1
answer
Which element has twice as many electrons in its second shell as in its first shell?
asked
Apr 3, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
properties of elements
their variations
class-11
atomic theory
ntse
class-9
atomic structure
periodic classification
class-10
the periodic properties
icse
+1
vote
1
answer
Which of the following is not a characteristics of Planck’* quantum theory of radiation?
asked
Apr 2, 2019
in
JEE
by
kratos
class-11
jee
kvpy
atomic structure
jee mains
units and measurements
structure of atom
+3
votes
1
answer
Which alkali metal during flame test will show colour corresponding to maximum wavelength?
asked
Apr 2, 2019
in
Chemistry
by
kratos
class-11
physical chemistry
atomic structure
aiims 2019
alkali and alkaline earth metals
class-12
+2
votes
1
answer
A compound of vanadium has a magnetic moment of 1.73 BM.
asked
Apr 1, 2019
in
Class 12
by
kratos
neet
coordination compounds
coordination
jee
atomic structure
jee mains
class-12
+3
votes
1
answer
What is the cathode made up of ?
asked
Apr 1, 2019
in
Class 12
by
kratos
principles and processes of isolation of elements
class-8
class-10
atomic structure
icse
class-12
+1
vote
1
answer
State the principle of Heisenberg’* uncertainty.
asked
Apr 1, 2019
in
JEE
by
kratos
class-11
jee
dual nature of radiation and matter
atomic structure
jee mains
structure of atom
+1
vote
1
answer
Define valency
asked
Mar 31, 2019
in
Class 11
by
kratos
structure of the atom
atoms and molecules
class-11
class-7
class-8
chemical bonding
atomic structure
molecular structure
class-9
+2
votes
1
answer
In the reaction 2FeCl2 + Cl2→2FeCl3, chlorine may be regarded as
asked
Mar 30, 2019
in
Class 12
by
kratos
class-12-hindi
d-and f- block elements
neet
rasaynic balgatiki
jee
atomic structure
jee mains
chemical kinetics hindi
coordinatian compounds
chemical kinetics
+3
votes
1
answer
With what velocity should an α-particle travel towards the nucleus of a copper atom so as to arrive at a distance 10^-13 m
asked
Mar 29, 2019
in
JEE
by
kratos
atomic structure
jee
jee mains
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