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Chemical Properties of Group - 17 Elements (Part - 1) Video Lecture - JEE
FAQs on Chemical Properties of Group - 17 Elements (Part - 1) Video Lecture - JEE
| 1. What are the chemical properties of Group 17 elements? |  |
Ans. Group 17 elements, also known as halogens, exhibit similar chemical properties. They have seven valence electrons and tend to gain one electron to achieve a stable octet configuration. Halogens are highly reactive and can form compounds with metals, nonmetals, and other halogens. They readily react with metals to form ionic compounds known as halides. Halogens can also form covalent compounds with nonmetals.
| 2. How do Group 17 elements react with metals? | |
Ans. Group 17 elements react with metals to form ionic compounds known as halides. The halogens gain one electron from the metal to achieve a stable electron configuration, while the metal loses one or more electrons to attain a stable octet configuration. This transfer of electrons results in the formation of a positively charged metal cation and a negatively charged halide anion. The reactivity of halogens with metals increases from top to bottom in Group 17.
| 3. Can Group 17 elements form compounds with nonmetals? | |
Ans. Yes, Group 17 elements can form compounds with nonmetals. They can share electrons with nonmetal atoms to form covalent compounds. For example, chlorine (Cl) can react with hydrogen (H) to form hydrogen chloride (HCl), a covalent compound. In this compound, chlorine shares an electron with hydrogen, forming a covalent bond. The ability of halogens to form covalent compounds increases as you move down Group 17.
| 4. Why are Group 17 elements highly reactive? | |
Ans. Group 17 elements are highly reactive due to their strong desire to achieve a stable electron configuration. They have seven valence electrons and require one additional electron to attain a stable octet configuration. This electron can be obtained by accepting an electron from another atom, leading to the formation of a negatively charged halide ion. The reactivity of halogens decreases from top to bottom in Group 17 as the atomic size increases.
| 5. What are some examples of compounds formed by Group 17 elements? | |
Ans. Group 17 elements, or halogens, can form various compounds. Some examples include:
- Hydrogen chloride (HCl): Formed by the reaction of chlorine (Cl) with hydrogen (H).
- Sodium chloride (NaCl): Formed by the reaction of chlorine (Cl) with sodium (Na).
- Bromine water (Br2 + H2O): A solution of bromine (Br2) in water, which forms a mixture of hydrobromic acid (HBr) and hypobromous acid (HBrO).
- Chlorine gas (Cl2): A diatomic molecule formed by the combination of two chlorine atoms.
These are just a few examples, and halogens can form compounds with a wide range of elements.
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Dec 22, 2024 Last updated |
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