Multiple choice

Modern periodic table was given by

  1. Dobereiner

  2. Moseley

  3. John Newland

  4. Dmitri Mendeleev
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The few defects in Mendeleev's periodic table were corrected by Moseley, and thus was formed the modern periodic table, based on the modern periodic law. Moseley changed the basis of arrangement of elements in Mendeleev's periodic table from atomic mass to atomic number and noticed that all defects of the periodic table were cleared by this change.

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