First slide
Atomic number, mass number, isotopes, isobars and isotones

The number of electrons, protons and neutrons in a species are equal to 38,38 and 50 respectively.  The proper symbol to the species is


Given, Z=38 and A=p+n = 38+50=88 ; That represents "Sr"

But the no. of electrons = no. of protons

Hence It is a neutral species.

The symbol is  Sr3888

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