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In-s [12.5K]
3 years ago
6

Write the symbols for the following isotopes: Its atoms contain 50 electrons and 70 neutrons

Chemistry
1 answer:
Veronika [31]3 years ago
6 0
Since this element has 50 electrons you know that it has 50 protons. The number of proton= the atomic number. Atomic number 50 is tin. The atomic symbol for tin is Sn and the weight is 120. So this is the tin 120 isotope
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