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A space probe identifies a new element in a sample collected from an asteroid. Successive ionization energies (in attojoules per atom) for the new element are shown below. I1 I2 I3 I4 I5 I6 I7 0.507 1.017 4.108 5.074 6.147 7.903 8.294 To what family of the periodic table does this new element probably belong? 1(1A) 2(2A) 13(3A) 14(4A) 15(5A) 16(6A) 17(7A) 18(8A)

William Cain

in Chemistry

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1 answer

Roger Moore on November 27, 2018

The ionization energy (ie) is the amount of energy required to remove an electron. If you observe the Hei in a sequential way, there is a big gap between the 2nd and the 3rd. This suggests that it is difficult to remove more than 2 two electrons. Elements that lose two electrons to be more stable in the Group 2A (2 represents the number of electrons in the last layer of valence shell).

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