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प्रश्न
Draw the structure of an atom and explain the position of the sub-atomic particles.
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उत्तर
Structure of an atom.
Position of the subatomic – particles.
Atom consist of three sub-atomic.
Particles: 1. Protons, 2. Electrons, 3. Neutrons
- The nucleus of the atom contains the protons (positively charged) and the neutrons (no change)
- The outermost regions of the atom are called electron shells and contain the electrons (negatively charged)
- The protons have a positive charge while neutrons have a neutral charge.
- Electrons circle around the nucleus of an atom, they are negatively charged.
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संबंधित प्रश्न
The average atomic mass of a sample of an element X is 16.2 u. What are the percentages of isotopes `""_8^16X" and """_8^18X` in the sample?
Tick the most appropriate answer.
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- Henri Becquerel
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- Pierre Curie
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Define: Chemical bond
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A charged particle is called an _____
Name the three subatomic particles present in an atom.
Is it possible to see atoms these days ? Explain your answer.
An atom of an element X may be written as `""_9^4"X"`
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(b) What does the figure 4 indicate?
(c) What is the number of protons in atom X?
(d) What is the number of neutrons in atom X?
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(g) Write the symbol of ion formed by an atom of element X.
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Define the following term with an example.
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