Element X reacts with element Y to give a product containing X3+ ions and Y2-ions. (d) In what groups of the periodic table are elements X and Y likely to be found?

검증된 단계별 안내

Identify the charges of the ions formed by elements X and Y. Element X forms X3+ ions, indicating it loses three electrons. Element Y forms Y2- ions, indicating it gains two electrons.

Recall that elements that lose electrons are metals and are typically found on the left side of the periodic table. The ability to lose three electrons suggests that element X is likely a metal in groups 1, 2, or 13-16, as these groups contain elements capable of forming +3 ions.

Consider that elements that gain electrons are nonmetals or metalloids and are typically found on the right side of the periodic table. The ability to gain two electrons suggests that element Y is likely a nonmetal in groups 16 or 17, as these groups contain elements capable of forming -2 ions.

Narrow down the groups by focusing on common oxidation states. Metals in group 13 frequently form +3 ions, making it a likely group for element X. Nonmetals in group 16 commonly form -2 ions, making it a likely group for element Y.

Conclude that element X is likely found in group 13 of the periodic table, and element Y is likely found in group 16 of the periodic table.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Ionic Compounds

Ionic compounds are formed when elements transfer electrons, resulting in the formation of positively charged cations and negatively charged anions. In this case, X3+ indicates that element X has lost three electrons, while Y2- shows that element Y has gained two electrons. Understanding the formation of these ions is crucial for identifying the elements involved.

Periodic Table Groups

Elements in the periodic table are organized into groups based on their similar properties and electron configurations. Group 13 elements typically form +3 cations, while Group 16 elements commonly form -2 anions. Recognizing the groups helps in predicting the likely identities of elements X and Y based on their ionic charges.

Electron Configuration

Electron configuration describes the distribution of electrons in an atom's orbitals. The tendency of elements to lose or gain electrons to achieve a stable electron configuration, often resembling that of noble gases, is fundamental in determining their reactivity. This concept aids in understanding why element X forms a +3 ion and element Y forms a -2 ion.