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प्रश्न
Atomic number : ______ :: Mass number : Number of protons and neutrons.
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उत्तर
Atomic number: Number of protons:: Mass number: Number of protons and neutrons.
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संबंधित प्रश्न
What are the two main features of Rutherford’s atomic model?
The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What is its atomic number and mass number?
Name the particles which actually determine the mass of an atom.
(a) Which of the nuclear particles is present in the same fixed number in the atoms of any particular element?
(b) What do we call this number which is characteristic of a particular element?
Elements X, Y and Z have atomic numbers 6, 9 and 12 respectively. Which one:
- Forms an anion
- Forms a cation
- Has four electrons in its valence shell?
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Carbon – \[\ce{^12_6C}\]
[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Oxygen – \[\ce{^16_8O}\]
[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.
Differentiate between the following term:
Atomic number and mass number
If M is the atomic mass and A is the mass number, then packing fraction is given by ______.
