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13. From the symbol K. write the following1.mass number of Potassium 2. atomic number of Potassium |
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Answer» mass no. 40atomic no. is 18 mass 40 andatomic number 19 1. mass 402. atomic number 19 mere ko nhi pta nhcgjhfdvjugdcguydcchuufccbju mass no 40 and atomic no.is19 Mass no. is the total no. of protons and neutrons in an atom. 1. mass no. is 402. atomic no. is 19PLEASE LIKE ❤ |
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