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प्रश्न
Multiple Choice Questions
The sub atomic particle with negative charge is
विकल्प
proton
neutron
electron
nucleon
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उत्तर
electron
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संबंधित प्रश्न
Explain the Atomic number with example.
Write true or false for the following statement
An atom on the whole has a positive charge.
Multiple Choice Questions
The sum of number of protons and number of neutrons present in the nucleus of an atom is called its
From the symbol `""_15^31"P"`, state :
(i) mass number of phosphorus,
(ii) atomic number of phosphorus, and
(iii) electron configuration of phosphorus.
What is meant by the 'atomic number of an element'?
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]
Draw the structure of the following atoms showing the nucleus containing – protons, neutrons and the orbits with the respective electron:
Isotopes of hydrogen [11H, 21H, 31H]
The atomic number of an element is 9, it has 10 neutrons. Find the element from the periodic table. What will be its mass number?
If M is the atomic mass and A is the mass number, then packing fraction is given by ______.
