NSTSE · Chemistry

Periodic Classification

Modern periodic table, periodic trends — atomic size, electronegativity.

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  • Q1 · Periodic Classification · MEDIUM

    Elements in the same group of the periodic table have the same:

  • Q2 · Periodic Classification · MEDIUM

    Elements P, Q, and R have atomic numbers 11, 12, and 13 respectively. Which statement is correct about these elements?

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