ICSE question bank

Every question in the vault, filterable by class, subject, chapter, topic, year, marks, difficulty, type and source. The filters live in the URL, so any view you build can be shared.

6 questions

Answer available
Class 9 · Chemistry · The Periodic Table
How many periods and groups are there in the modern periodic table, and what does the period number of an element tell you?
3 marksMediumShort answer
Answer available
Class 9 · Chemistry · The Periodic Table
An element X has an atomic number of 16. Write its electronic configuration, its group and period, and the formula of its compound with hydrogen.
3 marksMediumNumerical
Answer available
Class 9 · Chemistry · The Periodic Table
State two advantages of the modern periodic table over Mendeleev's table.
3 marksMediumShort answer
Answer available
Class 9 · Chemistry · The Periodic Table
State three achievements and two defects of Mendeleev's periodic table.
3 marksMediumShort answer
Answer available
Class 9 · Chemistry · The Periodic Table
State Mendeleev's periodic law and the modern periodic law, and say why the law was changed.
2 marksEasyShort answer
Answer available
Class 9 · Chemistry · The Periodic Table
An element has the electronic configuration 2, 8, 8, 2. State its atomic number, period and group.
3 marksMediumNumerical