Answer available
Class 11 · Chemistry · Classification of Elements and Periodicity in Properties
Explain why the first ionisation enthalpy of nitrogen is greater than that of oxygen.
3 marksMediumShort answer
Class 11 · ICSE · Chemistry
Classification of Elements and Periodicity in Properties
The modern periodic law, s, p, d and f blocks, and periodic trends in atomic radius, ionisation enthalpy, electron gain enthalpy and electronegativity.
- Questions
- 5
- PYQs
- 0
- Topics
- 0
Syllabus mapping: ISC syllabus (CISCE)
Questions
5 questions in this chapter.
- Answer available
Class 11 · Chemistry · Classification of Elements and Periodicity in Properties
Why does the atomic radius of the noble gases appear larger than that of the halogen before them?
3 marksMediumShort answer
- Answer available
Class 11 · Chemistry · Classification of Elements and Periodicity in Properties
Why is the second ionisation enthalpy of an element always greater than the first?
3 marksMediumShort answer
- Answer available
Class 11 · Chemistry · Classification of Elements and Periodicity in Properties
Define electronegativity and state how it varies in the periodic table.
3 marksMediumShort answer
- Answer available
Class 11 · Chemistry · Classification of Elements and Periodicity in Properties
Arrange Na+, Mg2+, F− and O2− in order of increasing ionic radius and give the reason.
3 marksMediumShort answer