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प्रश्न
How did the early chemists classify elements?
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उत्तर
Early chemists classified the elements on the bases of their properties, nature, character, valency, and whether they were metals or non-metals.
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संबंधित प्रश्न
An element X (atomic number 17) reacts with an element Y (atomic number 20) to form a compound.
(a) Write the position of these elements in the modern periodic table.
(b) Write the formula of the compound formed.
Justify your answer in each case.
Choose the correct option and rewrite the statement.
The number of electrons in the outermost shell of alkali metals is _______.
What was the basis of the earliest attempts made for classification and grouping of elements?
Answer the following question.
Write the name, symbol, and electronic configuration of an element X whose atomic number is 11.
The elements of group 16 are called ______
In which group are inert elements placed?
Which of the following property will be common in group 1 elements?
The element with atomic number 26 will be found in group ______
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Arranged elements into groups containing three elements each.
How are elements grouped into various families in the periodic table?
