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Using the periodic table, predict the fo...

Using the periodic table, predict the formulae of compounds which might be formed by the following pair of elements,
i) silicon and bromine ii) aluminum and sulpur.

Text Solution

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Solicon (Si) is a member of group 14 i.e., its valency is 4. Bromine is a member of halogen family, and herice its valence is 1. When they will combine the formulae of the compound formed will be
(ii) Aluminium is a member of group 13 and hence its valency.is 3. Sulphur belong to group 16. There are 6 valence electron and hence valency is 8-6=2.
Formula of compound formed would be or `Al_2 S_3`
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OMEGA PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-Multiple Choice Questions (MCQs)
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  2. Mendeleev's periodic law is based on

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  3. In the modern periodic table elements are arranged in order of

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  4. The modern periodic table known as the long form of periodic table was...

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  5. The long form of periodic table has

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  6. Fill in the blanks: The elements of group 17 are called…........

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  7. Alkaline earth metals belong to

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  8. Which of the following represents the electronic configuration of d-bl...

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  9. Explain why transition elements have high melting and boiling points ?

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  10. Which among the following will have largest size ?

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  11. Which of the following is/are correct?

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  12. The energy required to remove an electron from a gaseous atom from its...

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  13. In a period from Li to F ionisation enthalpy

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  14. Given the correct order of electronegativity of central atom in follow...

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  15. The electronegativities of F and H are 4.0 and 2.1 respectively. The p...

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  16. Which of the following element has maximum electron gain enthapy(neg...

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  18. The 3rd period of the periodic table contains

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  19. Which of the elements show least values of ionisation energies within ...

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