Group 7 elements are which type of elements?

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Study for the IMAT Chemistry Exam. Access flashcards and multiple choice questions; hints and explanations included for each question. Prepare effectively for your exam.

Multiple Choice

Group 7 elements are which type of elements?

Explanation:
Group 7 elements are halogens. They are nonmetals with seven electrons in their outer shell, so they tend to gain one electron to achieve a stable octet. That drive to gain electrons makes them highly reactive, especially with metals, and they commonly form salts with a −1 charge. In elemental form they exist as diatomic molecules such as F2, Cl2, Br2, I2, and At2. They sit in the p-block and have high electronegativity, distinguishing them from alkali metals (which lose one electron), noble gases (which already have a full octet and are very unreactive), and transition metals (d-block elements with variable oxidation states).

Group 7 elements are halogens. They are nonmetals with seven electrons in their outer shell, so they tend to gain one electron to achieve a stable octet. That drive to gain electrons makes them highly reactive, especially with metals, and they commonly form salts with a −1 charge. In elemental form they exist as diatomic molecules such as F2, Cl2, Br2, I2, and At2. They sit in the p-block and have high electronegativity, distinguishing them from alkali metals (which lose one electron), noble gases (which already have a full octet and are very unreactive), and transition metals (d-block elements with variable oxidation states).

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