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प्रश्न
Name or state the following:
Atoms of the same element differing in mass number
उत्तर
Hydrogen: 11H, 21H, 31H
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संबंधित प्रश्न
An element with mass number 81 contains 31.7% more neutrons as compared to protons. Assign the atomic symbol.
Define atomic mass of an element.
Explain the need for a reference atom for atomic mass. Give some information about two reference atoms.
What is meant by Unified Atomic Mass?
What are polyatomic ions? Give two examples.
Define the term:
Mass number
Explain the following:
An element has atoms with different mass numbers.
What would be the reason for an element to have atoms with different mass numbers?
Which of the following has the smallest mass?
Mass of 1 mole of Nitrogen atom is ______
Relative atomic mass is otherwise known as ______.
The average atomic mass of hydrogen is ______ amu.
The gram atomic mass of an element has no unit.
Write the different types of isotopes of oxygen and their percentage abundance.
Calculate the % of oxygen in Al2(SO4)3. (Atomic mass: Al-27, O-16, S -32)
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?
What are the postulates of Bohr’s model of an atom?
The ratio of masses of H and O in H2O is ______.
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.
