How many neutrons does element X have if its atomic number is 25 and its mass number is 72?
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since proton is equal to electron
and , electron is equal to atomic number
so, 72-25=47
and , electron is equal to atomic number
so, 72-25=47
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47 neutrons present in the element with "atomic number is 25 and it's mass number is 72".
Explanation:
- The number of neutrons of an element is calculated as the difference of the atomic number to its atomic mass, also known as mass number in other words.
- The formulae for calculating the "number of neutrons" is
- Number of neutrons = (Mass number – Atomic Number)
- Given that the element X is having atomic number 25, so the element is Manganese.
- Manganese is a "chemical element" with the symbol Mn. It is a "transition metal" also used in industries and stainless steel.
So 72 - 25=47 Neutons.
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