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The number of electrons in an ion Y2- is...

The number of electrons in an ion Y2- is 10. What is the atomic number of an element Y.

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MODERN PUBLICATION-ELECTROCHEMISTRY-EXERCISE
  1. What is corrosion? What is the chemical formula of rust?

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  2. What do you understand by sacrificial protection and electrical protec...

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  3. The number of electrons in an ion Y2- is 10. What is the atomic number...

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  4. The formula of metal carbonate of a metal M is M2CO3. What is the form...

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  5. The formula of metal carbonate of a metal M is M2CO3. What is the form...

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  6. Write the cell reactions which occur in lead storage battery when the ...

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  7. What is a Galvanic cell? Give the function of salt bridge.

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  8. Can a zinc spoon be used to stir a solution of copper sulphate? Suppor...

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  9. What are weak electrolytes ? Give examples.

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  10. The formula of metal carbonate of a metal M is M2CO3. What is the form...

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  11. Why does a dry cell become dead after a long time, even if it has not ...

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  12. How many moles are 5 grams of calcium ?

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  13. What are fuel cells ? Discuss H(2)-O(2) fuel cell. List some advantage...

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  14. What is the effect of decreasing concentration on the molar conductivi...

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  15. Calculate the limiting molar conductivity of CaSO4 limiting molar cond...

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  16. Distinguish between emf and potential difference.

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  17. Calculate the standard electrode potential of Ni^(2+)|Ni electrode if ...

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  18. What is the mass of 4 moles of aluminium atoms ?

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  19. Calculate the number of atoms in 0.2 mole of sodium (Na).

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  20. How many moles are 9.033 (10*24) atoms of helium (He)

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