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Questions and Answers
What is the basis of the periodic classification?
What is the basis of the periodic classification?
- Number of protons
- Atomic mass
- Number of electrons
- Atomic number (correct)
Which scientist is credited with the development of the modern periodic table?
Which scientist is credited with the development of the modern periodic table?
- Marie Curie
- Niels Bohr
- Ernest Rutherford
- Dmitri Mendeleev (correct)
What is the significance of the groups in the periodic table?
What is the significance of the groups in the periodic table?
- They indicate the number of valence electrons (correct)
- They indicate the atomic number
- They represent the number of protons
- They represent the number of energy levels
