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Questions and Answers
What is the main organizing principle of the periodic table?
What is the main organizing principle of the periodic table?
- Arrangement by electronegativity
- Arrangement by atomic number (correct)
- Arrangement by metallicity
- Arrangement by atomic mass
What is the approximate recurrence of properties mentioned in the periodic law based on?
What is the approximate recurrence of properties mentioned in the periodic law based on?
- Arrangement by atomic mass
- Arrangement by number of protons
- Arrangement by atomic number (correct)
- Arrangement by number of electrons
In which direction does metallic character generally increase within the periodic table?
In which direction does metallic character generally increase within the periodic table?
- From top to bottom within a group (correct)
- From right to left across a period
- From left to right across a period
- From bottom to top within a group
Who formulated the first generally accepted periodic table?
Who formulated the first generally accepted periodic table?
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What was used to predict some properties of missing elements in Mendeleev's periodic table?
What was used to predict some properties of missing elements in Mendeleev's periodic table?
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