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प्रश्न
Multiple Choice Questions
The sub atomic particle with negative charge is
पर्याय
proton
neutron
electron
nucleon
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उत्तर
electron
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संबंधित प्रश्न
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Rutherford won the Nobel Prize in 1908 for his investigations in the field of ......................
From the symbol `""_15^31"P"`, state :
(i) mass number of phosphorus,
(ii) atomic number of phosphorus, and
(iii) electron configuration of phosphorus.
The atomic number of four elements A, B, C and D are 12, 13, 15 and 3 respectively. The element which cannot form a cation is :
The diagram represents an isotope of hydrogen [H]. Answer the following:
Atomic no. = 1
Mass no. = 1
Which sub-atomic particles in the 3 isotopes of ‘H’ are the same.
Draw the structure of the following atoms showing the nucleus containing – protons, neutrons and the orbits with the respective electron:
Lithium [At. no. = 3, Mass no. = 7]
Draw the structure of the following atoms showing the nucleus containing – protons, neutrons and the orbits with the respective electron:
Carbon [At. no. = 6, Mass no. = 12]
An element ‘A’ has mass number 23 and atomic number 11. State the –
- no. of neutrons in its shell,
- electronic configuration of the element ‘A’.
Differentiate mass number from atomic number.
What are nucleons? How many nucleons are present in Phosphorous? Draw its structure.
State the term for the following:
The amount of substance which contains the same number of units as the number of atoms in carbon-12.
