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The number of electrons in the nucleus of C12 is

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Important Questions on Structure of Atom

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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
In the nuclear reaction Al2713+He42⟶X3014+H11,X is
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
Hydrogen has three isotopes A, B and C. If the number of neutron(s) in A, B and C respectively, are x, y and z, the sum of x, y and z is
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
An element with mass number 181 contains 32% more neutrons as compared to protons. What is the symbol of that element?
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
A particular station of All India Radio, New Delhi, broadcasts on a frequency of 1,368 kHz (kilo Hertz). The wavelength of the electromagnetic radiation emitted by the transmitter is [speed of light, c=3.0×108 ms-1]
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
The correct increasing order of the electronegativity is
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
The product obtained after a positron emission from Ga6831 is
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
The number of protons, neutrons and electrons in 71175Lu, respectively, are
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
The masses of an electron, a proton and a neutron respectively will be in the ratio
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
The sum of the total number of neutrons present in protium, deuterium and tritium is
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models

Match the following :
List -I :
(a) Frequency of distribution of the emitted radiation from a black body
(b) Spin quantum numbers(ms)
(c) Angular Momentum
(d) All orbital have equal energy

List - II :
(i) degeneracy
(ii) temperature dependent
(iii) vector quantity
(iv) mass times velocity times radius 

Codes:

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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
The ratio of the highest to the lowest wavelength of Lyman series is
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
If the Thomson model of the atom was correct, then the result of Rutherford's gold foil experiment would have been:
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
The number of electrons, protons and neutrons in a species are equal to 10,11 and 12 respectively. The proper symbol-of the species is
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
Isotopes are
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
Consider a hypothetical case in which the charge of a proton is twice as that of an electron. Using this hypothetical case, how many protons P, neutrons N and electrons E would a neutral Na23 atom contain?
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
The introduction of a neutron into the nucleus of an atom would lead to a change in
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
The number of protons, neutrons and electrons in C613 respectively are
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
Which of the following is the correct unit of angular momentum of an electron in an orbital of an atom ?
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
The relation between the stopping potential V0 and frequency v is correctly represented in [ϕ= Work function]
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Chemistry>Physical Chemistry>Structure of Atom>Atomic Models
Which of the following conclusions could not be derived from Rutherford's α-particle scattering experiment: