The following Lewis diagram represents the valence electron configuration of a main-group element. This element is in group [VIIA(17) According to the octet rule, this element would be expected to form an ion with a charge of 1- If X is in period 4, the ion formed has the same electron configuration as the noble gas The symbol for the ion is

The following Lewis diagram represents the valence electron configuration of a main-group element. This element is in group [VIIA(17) According to the octet rule, this element would be expected to form an ion with a charge of 1- If X is in period 4, the ion formed has the same electron configuration as the noble gas The symbol for the ion is

Introductory Chemistry For Today

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Chapter4: Forces Between Particles

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The following Lewis diagram represents the valence electron configuration of a main-group element. X• This element is in group According to the octet rule, this element would be expected to form a(n) with a charge of If X is in period 3 , the ion formed has the same electron configuration as the noble gas CO The symbol for the ion is
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Answer true or false. (a) The octet rule refers to the chemical bonding patterns of the first eight elements of the Periodic Table. (b) The octet rule refers to the tendency of certain elements to react in such a way that they achieve an outer shell of eight valence electrons. (c) In gaining electrons, an atom becomes a positively charged ion called a cation. (d) When an atom forms an ion, only the number of valence electrons changes; the number of protons and neutrons in the nucleus does not change. (e) In forming ions, Group 2A elements typically lose two electrons to become cations with a charge of 12. (f) In forming an ion, a sodium atom (1s22s22p63s1) completes its valence shell by adding one electron to fill its 3s shell (1s22s22p63s2). (g) The elements of Group 6A typically react by ac- cepting two electrons to become anions with a charge of 22. (h) With the exception of hydrogen, the octet rule applies to all elements in periods 1, 2, and 3. (i) Atoms and the ions derived from…

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