Question 1

The graph above shows the successive ionization energies for an element in the third period of the periodic table. Based on the sharp increase after the eighth ionization, which element does this data most likely represent?

Accepted Answer

P

Question 2

Which of the following best explains the large jump in ionization energy after the eighth electron is removed from the element shown in the graph?

Accepted Answer

The ninth electron is being removed from a noble gas core, which is much more stable.

Question 3

If the element in the graph is phosphorus, what is the electron configuration of its +8 ion?

Accepted Answer

$1s^2\ 2s^2\ 2p^2$

Question 4

Which statement about ionization energy trends is supported by the data in the graph?

Accepted Answer

Ionization energy increases gradually, then jumps sharply when removing a core electron.

Question 5

Based on the graph, how many valence electrons does the element have?

Accepted Answer

5

General Chemistry Exam 1 Study Guidance

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