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What do you understand by atomic mass of...

What do you understand by atomic mass of an element?

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The atomic mass of an element is defined as the average relative mass of its atoms as compared with the mass of carbon-12 isotope taken as 12.
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S CHAND IIT JEE FOUNDATION-ATOMIC STRUCTURE-QUESTION BANK-20
  1. Who was the first Indian philosopher who had postulated that matter is...

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  2. What is atomic mass unit (amu)?

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  3. What do you understand by atomic mass of an element?

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  4. Two types of atoms of chlorine have atomic masses 35 and 37, then why ...

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  5. What is the difference between mass number and atomic mass?

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  6. Discovery Of Neutrons is by ?

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  7. How was the stability of atom explained by Bohr's model?

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  8. Why is atomic number always calculated from the number of protons in t...

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  9. Atomic number of chlorine is 17. What will be the atomic number of chl...

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  10. Atomic number of sodium is 11. What will be the atomic number of sodiu...

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  11. What are the postulates of Bohr's model of atom? How does Bohr model o...

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  12. Why are atomic masses of most of the elements fractional and not whole...

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  13. Why does helium exist as He whereas hydrogen exists as H2

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  14. Name the three isotopes of hydrogen. How do they differ from each othe...

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  15. M-shell can have up to 18 electrons, then why does potassium (Atomic n...

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  16. What are the different isotopes of oxygen? Write their symbols and dra...

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  17. As we move away from the nucleus, in atom the potential energy of elec...

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  18. Could a nucleus of more than one proton but no neutrons exist? Explain...

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  19. The valence shell of an element ""(20)^(40)X is the 3rd shell.

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  20. According to Bohr's atomic model, electrons revolve around the nucleus...

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