Models of Matter A.2 The Nuclear Atom (id: 7cd788de2)

本题目来源于试卷: Models of Matter A.2 The Nuclear Atom，类别为 IB化学

[填空题]
The atom of element X has a 9fv ,dv6 fz0ysmass number of 127 and has 74 neutrons. The ion der.6u jyw2lus9oived from X has 54 electron.ujs2l ou69wy s.

1.Calculate the number of protons of element X.  
2.State the nuclear symbol of the ion formed (refer to the periodic table).
3.An isotope of X has a mass number of 132. Determine the number of neutrons in its atom.  neutrons

参考答案:
空格1: 53  空格2: 79 


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