Home
Class 10
CHEMISTRY
What are noble gas elements ? Why are th...

What are noble gas elements ? Why are they so called?

Promotional Banner

Topper's Solved these Questions

  • METALS AND NON METALS

    MBD|Exercise EXAMPLE|157 Videos

Similar Questions

Explore conceptually related problems

What are inner transition elements? Why are they so called?

What are noble gases? Why are they named so? Account for the fact that noble gases exhibit low chemical reactivity.

What are macroelements? Why are they called essential elements?

What are macronutrients ? Why are they called macronutrients ?

What are quantasomes? Why are these called photosynthetic units?

What do you mean by light emitteing diodes? Why are they so called? State applications of LEDs. Why we prefer LEDs over conventional incandescent lamps?

Give general characteristics of transition elements and why are they called transition elements ?

What are vertebrates? Why are these called craniates?

Why transistor is so called?

MBD-PERIODIC CLASSIFICATION OF ELKHOENTS-EXAMPLE
  1. What are amphoteric oxides? give two examples of amphoteric oxides?

    Text Solution

    |

  2. Why is it that non-metals do not displace hydrogen from dilute acids?

    Text Solution

    |

  3. What are noble gas elements ? Why are they so called?

    Text Solution

    |

  4. How is metallic character of an element defined? How does the melallic...

    Text Solution

    |

  5. Why do the elements present in a group show similar chemical propertie...

    Text Solution

    |

  6. How does the reactivity of the metals vary in a group?

    Text Solution

    |

  7. Name the elements present in the second period. Give their electronic ...

    Text Solution

    |

  8. Why do not the elements present in period show same valency?

    Text Solution

    |

  9. The metallic character of the elements in a period decreases from left...

    Text Solution

    |

  10. Give symbols for: a metal belonging to second group of the periodic ta...

    Text Solution

    |

  11. Give symbols for:A metal belonging to the third group of the periodic ...

    Text Solution

    |

  12. Give symbols for: two non-metals belonging to the halogen family.

    Text Solution

    |

  13. Write electronic structures of:potassium

    Text Solution

    |

  14. Write electronic structures of: lithium

    Text Solution

    |

  15. Write electronic structures of: fluorine

    Text Solution

    |

  16. Name two other elements which are in the same family as (i) carbon (II...

    Text Solution

    |

  17. Carbon (atomic number 6) and silicon(atomic number 14) are elements in...

    Text Solution

    |

  18. Sodium and aluminium have atomic numbers of 11 and 13 respectively the...

    Text Solution

    |

  19. Give the atomic number and electronic disribution of: The thrid alkali...

    Text Solution

    |

  20. Give the atomic number and electronic disribution of: The secound alka...

    Text Solution

    |