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Questions and Answers
What is the total number of elements in the periodic table as per the NCERT class 12?
What is the total number of elements in the periodic table as per the NCERT class 12?
Which element is the most electronegative as per the periodic table in NCERT class 12?
Which element is the most electronegative as per the periodic table in NCERT class 12?
What is the atomic number of the element with the symbol 'Fe' in the periodic table according to NCERT class 12?
What is the atomic number of the element with the symbol 'Fe' in the periodic table according to NCERT class 12?
Which of the following best describes the characteristics of aromatic elements?
Which of the following best describes the characteristics of aromatic elements?
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What role do aromatic elements play in organic chemistry?
What role do aromatic elements play in organic chemistry?
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What is a common property of aromatic elements in terms of their electron configuration?
What is a common property of aromatic elements in terms of their electron configuration?
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Study Notes
Periodic Table in NCERT Class 12
- The total number of elements in the periodic table as per NCERT class 12 is 118.
Electronegativity
- The most electronegative element in the periodic table, as per NCERT class 12, is Fluorine (F).
Atomic Number of 'Fe'
- The atomic number of the element with the symbol 'Fe' (Iron) is 26, according to the periodic table in NCERT class 12.
Aromatic Elements: Characteristics
- Aromatic elements possess a cyclic structure, featuring a ring of alternating single and double bonds.
- This ring is planar and contains delocalized pi electrons.
- These elements exhibit high stability, a consequence of the electron delocalization.
Aromatic Elements: Role in Organic Chemistry
- Aromatic elements play a crucial role in organic chemistry, primarily due to their unique stability and reactivity patterns.
- They are essential components of various organic compounds, including medicines, dyes, and polymers.
Aromatic Elements: Electron Configuration
- A common characteristic shared by aromatic elements is their electron configuration, which features a filled p orbital in each atom within the ring.
- This filled p orbital facilitates the delocalization of pi electrons, contributing to the stability and reactivity of aromatic compounds.
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Description
Test your knowledge of the periodic table according to NCERT class 12 with this quiz. Explore the total number of elements, the most electronegative element, and the atomic number of specific elements. Sharpen your understanding of the periodic table with these questions.
