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The p-Block Elements in One Shot (NCERT) Video Lecture - Chemistry Class 11 - NEET

195 videos|336 docs|190 tests

FAQs on The p-Block Elements in One Shot (NCERT) Video Lecture - Chemistry Class 11 - NEET

1. What are p-block elements?
Ans. p-block elements are the elements in the periodic table that belong to groups 13 to 18. They are called p-block elements because their last electron enters the p orbital of their outermost energy level. These elements include metals, metalloids, and nonmetals.
2. Why are p-block elements important?
Ans. p-block elements are important because they exhibit a wide range of chemical properties and are involved in various biological processes. They play a crucial role in the formation of compounds, such as organic molecules, and are used in industries for manufacturing fertilizers, polymers, medicines, and more.
3. How are p-block elements classified?
Ans. p-block elements are classified into three main categories: 1. Group 13 elements: These elements include boron, aluminum, gallium, indium, and thallium. They have three valence electrons and exhibit both metal and nonmetal properties. 2. Group 14 elements: These elements include carbon, silicon, germanium, tin, and lead. They have four valence electrons and exhibit properties ranging from nonmetals to metals. 3. Group 15 to 18 elements: These elements include nitrogen, phosphorus, oxygen, sulfur, fluorine, chlorine, and noble gases like helium, neon, and argon. They have five to eight valence electrons and display a variety of properties, including nonmetals, metalloids, and noble gases.
4. How do p-block elements react with other elements?
Ans. The reactivity of p-block elements varies depending on their group and period. Generally, p-block elements tend to form covalent bonds and share electrons with other elements. Group 13 elements tend to lose three electrons to achieve a stable octet configuration, while group 15 to 18 elements either gain or share electrons to complete their octet.
5. Give an example of an important p-block element and its usage.
Ans. Silicon is an important p-block element widely used in various industries. It is a semiconductor and is used extensively in the production of electronics, such as computer chips and solar panels. Silicon is also present in building materials, glass, ceramics, and many other everyday items.
195 videos|336 docs|190 tests
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