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प्रश्न
Define the term of mass number.
What is meant by the term mass number with reference to an atom
उत्तर
Mass number [A]: “Is the total number of protons and neutrons in the atom of an element.”
A = P + n
संबंधित प्रश्न
A 0.24 g sample of compound of oxygen and boron was found by analysis to contain 0.096 g of boron and 0.144 g of oxygen. Calculate the percentage composition of the compound by weight.
Define gram atomic mass of a substance. How much is the gram atomic mass of oxygen ?
Define atomic mass of an element.
What is meant by Unified Atomic Mass?
What is meant by atomic mass number?
Define the following form:
Atomic mass number
A hydrocarbon contains 4.8g of carbon per gram of hydrogen. Calculate the gram atom of each.
What would be the reason for an element to have atoms with different mass numbers?
Draw the structure of oxygen and sulphur atoms.
Mass of 1 mole of Nitrogen atom is ______
Which of the following represents 1 amu?
Relative atomic mass is otherwise known as ______.
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.
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)
Atoms are so tiny their mass number cannot be expressed in grams but expressed in ______.
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.
