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प्रश्न
What is meant by atomic mass number?
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उत्तर
Atomic mass number is the sum of the total number of protons and neutrons present in a nucleus.
संबंधित प्रश्न
Define atomic mass unit.
Choose the correct answer from the option given below.
Modern atomic symbols are based on the method proposed by
Explain the following:
An element has atoms with different mass numbers.
Name or state the following:
Atoms of the same element differing in mass number
Define the term of mass number.
Draw the structure of oxygen and sulphur atoms.
The gram atomic mass of an element has no unit.
Answer the following question using the data given below:
- Assertion: The Relative Atomic mass of aluminium is 27
- Reason: An atom of aluminium is 27 times heavier than 1/12th of the mass of the C – 12 atom.
One electron is present in the outermost shell of the atom of an element X. What would be the nature and value of charge on the ion formed if this electron is removed from the outermost shell?
If the atomic mass unit ‘u’ were defined to be `1/5 "th"` of the mass of an atom of C-12, what would be the atomic weight of nitrogen in amu or ‘u’ in this state? Atomic weight of N on the conventional scale is 14.
