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प्रश्न
The molecular formula of the chloride of element X is XCl. This compound is a solid having a high melting point. Which of the following elements be present in the same group as X.
पर्याय
Na
Mg
Al
Si
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उत्तर
Molecular formula of the chloride of an element X is XCl. This compound is a solid having high melting point. An element to be present in the same group as X is Na.
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संबंधित प्रश्न
An element P (atomic number 20) reacts with an element Q (atomic number 17) to form a compound. Answer the following questions giving reason:
Write the position of P and Q in the Modern Periodic Table and the molecular formula of the compound formed when P reacts with Q.
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Rewrite the following statement after correction, if necessary:
Groups have elements with consecutive atomic numbers.
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(a) 6
(b) 16
(c) 12
(d) 19
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(a) To which group or period of the periodic table do these elements belong?
(b) What would be the nature of compound formed by a combination of elements B and F?
(c) Which two of these elements could definitely be metals?
(d) Which one of the eight elements is most likely to be found in gaseous state at room temperature?
(e) If the number of electrons in the outermost shell of elements C and G be 3 and 7 respectively, write formula of the compound formed by the combination of C and G.
Choose the correct option and rewrite the statement.
The number of electrons in the outermost shell of alkali metals is _______.
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How did the early chemists classify elements?
The basis of the classifications proposed by Dobereiner, Newlands and Mendeleev was ______.
Example for liquid metal is ______.
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Metals can gain electrons.
______ group contains the member of the halogen family.
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