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प्रश्न
Give reason
Actual atomic mass is greater than mass number.
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उत्तर
Actual atomic mass is greater than the mass number because the mass number is a whole number approximation of atomic mass unit. In fact, neutrons are slightly heavier than protons, and an atom has over 200 sub-atomic particles.
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संबंधित प्रश्न
State the mass number, the atomic number, number of neutrons and electronic configuration of the following atoms.
`""^12""_6C, ""^16""_8O, ""^19""_9F, ""^20""_10Ne, ""_13""Al""^27, ""_17""Cl""^35`
Also, draw atomic diagrams for them.
TRUE \ FALSE
After the emission of a beta-particle, the atomic number of the atom increases by one.
An element has an atomic number 12. How many electrons will be present in the K, L and M energy shells of its atom?
Name or state the following:
Elements having same mass number but different atomic number
If an atom ‘A’ has mass number 35 and atomic number 17, state the number of protons, electrons and neutrons it contains.
State why the atomic weight of an element is also termed relative atomic mass.
The No. of electrons in the outermost shell of the atom of an inert gas ______.
Mass No. 27 is for the element ______.
If an atom has 6 electrons in its outermost shell, it is inert.
If element M has mass number 24 and atomic number 12, how many neutrons does its atom contain?
