Models of Matter A.3 Electron Configurations (id: 4c92b9785)

本题目来源于试卷: Models of Matter A.3 Electron Configurations，类别为 IB化学

[填空题]
The successive ionization energies for elem/co)id kqn ,z4enta36 yd h xeu8olao9 xh)x lj4,n;spgf-zw2-,v X is shown in the table below:
Successive Ionization Energies$(kJ mol{-1})$

1stIE	2ndIE	3rdIE	4thIE	5thIE	6thIE	7th IE	8th IE
1000	2252	3363	4556	7004	8496	27108	31724

1.Write the equation that represents the 2nd ionization energy of element X.
2.Predict the number of valence electrons for element X has   valence electrons and justify your response.
3.Another element, Y, is found below and in the same group as element X in the periodic table. The electronegativity value of element Y is 2.6. Predict a reasonable value for the electronegativity value of element X. Explain your reasoning.

参考答案: 6


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