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Questions and Answers
What does the periodic table arrange into rows and columns?
What does the periodic table arrange into rows and columns?
- Molecules
- Atomic nuclei
- Chemical elements (correct)
- Chemical compounds
According to the periodic law, what is evident when elements are arranged in order of their atomic numbers?
According to the periodic law, what is evident when elements are arranged in order of their atomic numbers?
- Approximate recurrence of their properties (correct)
- No pattern in their properties
- Complete change in their properties
- Exact repetition of their properties
Which chemist formulated the first generally accepted periodic table?
Which chemist formulated the first generally accepted periodic table?
- Niels Bohr
- Albert Einstein
- Dmitri Mendeleev (correct)
- Marie Curie
What increases going down a group in the periodic table?
What increases going down a group in the periodic table?
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What discovery helped to explain the periodic law early in the 20th century?
What discovery helped to explain the periodic law early in the 20th century?
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