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Introduction: Group-15 Elements Video Lecture | Chemistry for JEE Main & Advanced

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FAQs on Introduction: Group-15 Elements Video Lecture - Chemistry for JEE Main & Advanced

1. What are the elements in Group 15?
Ans. Group 15 elements, also known as the Nitrogen group, include nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi).
2. What are the properties of Group 15 elements?
Ans. Group 15 elements exhibit similar chemical properties. They have five valence electrons, tend to gain three electrons to achieve a stable electron configuration, and form anions with a charge of -3. These elements are nonmetals, except for bismuth which is a metal, and they have a wide range of physical and chemical properties.
3. How does the atomic size change in Group 15 elements?
Ans. As you move down the Group 15 elements, the atomic size increases. This is because each successive element has an additional energy level, resulting in an increased number of electrons and a larger atomic radius.
4. What is the trend in electronegativity in Group 15 elements?
Ans. Electronegativity is the tendency of an atom to attract electrons towards itself. In Group 15, electronegativity generally decreases as you move down the group. This is due to the increase in atomic size, which results in a weaker attraction for electrons.
5. How do Group 15 elements react with oxygen?
Ans. Group 15 elements react with oxygen to form oxides. Nitrogen forms nitrogen oxides (NO and NO2) by direct combination with oxygen. Phosphorus forms phosphorus pentoxide (P2O5) and phosphorus trioxide (P4O6). Arsenic reacts with oxygen to form arsenic trioxide (As2O3). Antimony and bismuth also react with oxygen to form corresponding oxides.
352 videos|596 docs|309 tests
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