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Periodic Classification of Elements Quiz
Class X
Science
Periodic Classification of Elements
12 questions
HARD
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Preview questions
1. Which scientist is known for the first periodic table?
Dmitri Mendeleev · John Dalton · J.J. Thomson · Ernest Rutherford
2. What property did Mendeleev primarily use to arrange the elements?
Atomic mass · Atomic number · Density · Electronegativity
3. Which of the following groups contains only noble gases?
Group 1 · Group 2 · Group 17 · Group 18
4. What is the main limitation of Mendeleev's periodic table?
Does not include all known elements · Inaccurate atomic masses · Does not predict new elements · Elements are not grouped correctly
5. Which element is placed in Group 1 of the periodic table?
Sodium · Calcium · Iron · Magnesium
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