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What is the common feature in the electr...

What is the common feature in the electronic configuration of metal atoms ?

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The metal atoms in general have one, two or maximum of three valence electrons which they can easily lose to form cations or positive ions.
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DINESH PUBLICATION-METALS AND NON-METALS-Very Short Answer Questions
  1. Why do silver articles become black after some time ?

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  2. Name a metal other than aluminium that is covered with a layer of oxid...

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  3. What is the common feature in the electronic configuration of metal at...

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  4. Name one metal and one non-metal which exist in liquid state at room t...

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  5. What changes do you observe in the iron nails and colour of copper sul...

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  6. What are amphoteric oxides? Give two examples of amphoteric oxides.

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  7. Name a non-metal which is lustrous and a metal which is non-lustrous.

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  8. Give the electronic configuration of an element having atomic number 1...

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  9. A non-metal X exists in two different forms Y and Z. Y is hardest natu...

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  10. Aluminium occurs in the combined state while gold does not. Why ?

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  11. If copper metal is heated over a flame, it develops a coating. What is...

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  12. Why does not stainless steel get rusted easily ?

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  13. Why can we use gold and platinum in jewellery ?

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  14. Give chemical names of the two salts belonging to sodium family.

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  15. Name any one alloy made from (i) a metal and a non-metal (ii) two meta...

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  16. Why do we apply paint on iron articles?

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  17. Explain why calcium metal after reacting with water starts floating on...

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  18. Name two metals which can be used to reduce to metal oxides to metals.

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  19. The wires carrying current in homes have a coating of PVC. Why ?

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  20. Name the following : (a) A metal which is preserved in kerosene (...

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