Interpretation: The correct option needs to be chosen from the given choices when the phosphorus element forms an ion.
Concept Introduction: An atom can lose or gain electron/s to attain noble gas electron configuration. A cation or positive charge ion is formed when an atom loses electron/s similarly, an anion or negative charge ion is formed when an atom gain electron/s.
Answer to Problem 6STP
The correct choice is option (C) that is gains three electrons.
Explanation of Solution
Reason for correct choice/s:
The given element is phosphorus. It belongs to group 15 and its
Here, the valence shell is
Since phosphorus is a non-metal, it gains electrons to form an anion, and to complete the octet it can gain 3 electrons.
Therefore, the correct choice is “gains three electrons”.
Therefore, the correct option is (C).
Reason for incorrect choice/s:
The given element is phosphorus which is a non-metal. Since non-metals tend to be electron deficient, they do not lose electron/s to attain noble gas electron configuration. Therefore, (B) and (D) cannot be correct choices.
Also, phosphorus belongs to group 15 and has 5 valence electrons. If it gains one or two electrons, the octet cannot be completed and it does not attain noble gas configuration. Therefore, (A) and (E) are incorrect choices.
Chapter 7 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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