If an atom of tin has a mass number of 118 and an atomic number of 50, how many electrons does it have? 50 168 118 68
2 answers:
50 electrons because the number of protons (atomic number) is the same as the number of electrons.
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Iodine and Calcium is the correct answer
Lowered cos the higher the ph the lower the hydrogen ions
Answer:
C
Explanation:
They are stabil and full of valence electron.
