An ion y3- contains 18 electrons and 16 neutrons.
calculate atomic number and mass number of element y. Name the element y
Dear Student,
Please find below the solution to the asked query:
Atomic number is the number of protons which is also equal to the number of electrons in the atom of the element.
The given ion Y3− is an ion of charge 3-, which means it has gained three electrons. So by removing three electrons, the atomic number comes out to be 15.
Mass number = Number of protons + Number of neutrons
= 15 + 16 = 31 u
The element Y is phosphorus.
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