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Questions and Answers
Which scientist's contribution to the periodic table involves the concept of Triad and the average of the first and third atomic mass?
Which scientist's contribution to the periodic table involves the concept of Triad and the average of the first and third atomic mass?
In the context of the atomic structure, who discovered the nucleus by observing the sequential change in molecular formulae?
In the context of the atomic structure, who discovered the nucleus by observing the sequential change in molecular formulae?
Which group in the modern periodic table exhibits properties where the number of electrons in the outermost shell is 1?
Which group in the modern periodic table exhibits properties where the number of electrons in the outermost shell is 1?
What is the valency exhibited by alkali earth metals according to their position in the modern periodic table?
What is the valency exhibited by alkali earth metals according to their position in the modern periodic table?
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What is the molecular formula of the chloride of an element X?
What is the molecular formula of the chloride of an element X?
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Which of the following elements belongs to group 2 in the periodic table?
Which of the following elements belongs to group 2 in the periodic table?
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Among the elements 6C, 8O, 5B, and 13Al, which is the most electronegative?
Among the elements 6C, 8O, 5B, and 13Al, which is the most electronegative?
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Which element has the smallest atomic radius among 19K, 3Li, 11Na, and 4Be?
Which element has the smallest atomic radius among 19K, 3Li, 11Na, and 4Be?
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Which element from the provided list has the electron configuration 2, 8, 4?
Which element from the provided list has the electron configuration 2, 8, 4?
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Among the elements Na, Mg, Al, and Si, which one has the largest atomic size?
Among the elements Na, Mg, Al, and Si, which one has the largest atomic size?
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