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Questions and Answers
How many electrons can the first energy level hold?
How many electrons can the first energy level hold?
Which group includes elements with full outer energy levels?
Which group includes elements with full outer energy levels?
In Mendeleev's periodic table, how were elements arranged?
In Mendeleev's periodic table, how were elements arranged?
What did Mendeleev do if elements didn't fit the patterns in his table?
What did Mendeleev do if elements didn't fit the patterns in his table?
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How did Mendeleev account for undiscovered elements in his periodic table?
How did Mendeleev account for undiscovered elements in his periodic table?
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How did Mendeleev predict the properties of undiscovered elements?
How did Mendeleev predict the properties of undiscovered elements?
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What is the key difference between Mendeleev's periodic table and the modern periodic table?
What is the key difference between Mendeleev's periodic table and the modern periodic table?
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What guided Mendeleev in placing elements in his periodic table?
What guided Mendeleev in placing elements in his periodic table?
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What is a common feature among elements in Group 0?
What is a common feature among elements in Group 0?
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Why is Mendeleev's prediction of undiscovered elements considered significant?
Why is Mendeleev's prediction of undiscovered elements considered significant?
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