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प्रश्न
Fill in the blank of the following statement :
All the mass of an atom is concentrated in a small region of space called the ___________.
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उत्तर
All the mass of an atom is concentrated in a small region called the nucleus.
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संबंधित प्रश्न
From the symbol `""_15^31"P"`, state :
(i) mass number of phosphorus,
(ii) atomic number of phosphorus, and
(iii) electron configuration of phosphorus.
Draw the orbital diagram of `""_20^40"Ca"^(2+)` ion and state the number of three fundamental particles present in it.
Match the atomic numbers 4,8,10,15 and 19 with each of the following:
An element which does not form ion
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Phosphorus – \[\ce{^31_15P}\]
[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]
Define the term of atomic number.
The particles that make up the atom are called ______ particles.
Mass No =______ + No. of Neutrons.
If element M has mass number 24 and atomic number 12, how many neutrons does its atom contain?
Ca2+ has completely filled outer shell. Justify your answer.
If M is the atomic mass and A is the mass number, then packing fraction is given by ______.
