an element with mass number contains 81 contains 31.7percent more neutrons as compared to protons identified the element
Answer (1)
14th Dec, 2019
Hi Anilbabu,
Given in the question are
Element with mass number is 81
Neutron content 31.7% more compared to protons
Now, Mass Number = 81
i.e., Number of protons + Number of neutrons = 81 .....(1)
Let the number of proton be x
Neutron will be = x + (31.7/100) x = 1.317x
Putting the value in (1)
=> x + 1.317x = 81
=> x = 81/2.317
=> 35
So, protons is 35.
Symbol of the element will be 81Br35
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