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Anomalous Properties of Second Period Elements Video Lecture | Chemistry Class 11 - NEET

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FAQs on Anomalous Properties of Second Period Elements Video Lecture - Chemistry Class 11 - NEET

1. What are the second period elements?
Ans. The second period elements are the elements in the second row of the periodic table, starting from lithium (Li) and ending with neon (Ne). These elements include beryllium (Be), boron (B), carbon (C), nitrogen (N), oxygen (O), fluorine (F), and neon (Ne).
2. What are anomalous properties of second period elements?
Ans. The anomalous properties of second period elements refer to the unique characteristics they exhibit compared to other elements in their respective groups. Some of these properties include their small atomic and ionic radii, high electronegativity, and ability to form multiple bonds.
3. Why do second period elements have small atomic and ionic radii?
Ans. Second period elements have small atomic and ionic radii due to their increased nuclear charge and effective nuclear charge. As we move across the second period, from left to right, the number of protons in the nucleus increases, resulting in a stronger attractive force on the electrons, causing them to be pulled closer to the nucleus, and thus reducing the atomic and ionic radii.
4. What is the significance of the high electronegativity of second period elements?
Ans. The high electronegativity of second period elements means that they have a strong tendency to attract electrons towards themselves when forming chemical bonds. This property plays a crucial role in the formation of various compounds, such as ionic compounds, covalent compounds, and intermolecular forces.
5. How do second period elements exhibit the ability to form multiple bonds?
Ans. Second period elements, such as carbon, nitrogen, and oxygen, can form multiple bonds due to their small atomic sizes and high electronegativities. These elements have the ability to share multiple pairs of electrons with other atoms, resulting in the formation of double or triple bonds. This ability is essential in the formation of organic compounds and plays a significant role in the diversity of chemical reactions.
195 videos|337 docs|190 tests
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