Home
Class 10
CHEMISTRY
The outermost shell of a representative ...

The outermost shell of a representative element contains x electrons and penultimate shell contains Y electrons. The number of valence electrons could be………

A

y - x

B

y

C

x

D

x + y

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS THE PERIODIC TABLE

    BEYOND PUBLICATION|Exercise EXERCISE|179 Videos

  • CHEMICAL EQUATIONS

    BEYOND PUBLICATION|Exercise EXERCISE|73 Videos

  • PRINCIPLES OF METALLURGY

    BEYOND PUBLICATION|Exercise EXERCISE|153 Videos

Similar Questions

Explore conceptually related problems

What are representative elements? Give their valence shell configuration.

An element has 18 electrons in the outer most shell. The element is

What are representative elements? Give their valence shell configuration

Number of electrons present in the penultimate shell of magnesium atom.

Electrons in _____ shell are called valence electrons.

The outermost main shell of an element is 'M' shell. This element belongs to ___ period.

An element has 2 electrons in its K-shell. 8 electrons in L-shell, 13 electrons in M-shell and one electron in N-shell. The element is

BEYOND PUBLICATION-CLASSIFICATION OF ELEMENTS THE PERIODIC TABLE-EXERCISE
  1. Which of the following sets of atomic numbers corresponds to the atomi...

    Text Solution

    |

  2. Atomic numbers of last elements of 'd' block and p block of incomplete...

    Text Solution

    |

  3. The outermost shell of a representative element contains x electrons a...

    Text Solution

    |

  4. Which of the following statements about the modern periodic table are ...

    Text Solution

    |

  5. Choose the right properties of periodic table. (a) Atomic radius incr...

    Text Solution

    |

  6. Which of the following species does have electrons equal to 18 ? (a) K...

    Text Solution

    |

  7. Pick out the correct statements about chlorine atom. (a) Chlroine is ...

    Text Solution

    |

  8. What are the elements that belonged to 18th (or) '0' group ? (a) Heliu...

    Text Solution

    |

  9. Electronic configuration from ns^2 np^1 to np^2 np^6 are called

    Text Solution

    |

  10. 1 pm = …………..

    Text Solution

    |

  11. block elements are called as lanthanides and actinides in modern perio...

    Text Solution

    |

  12. "The law states hat the physical and chemical properties of the ...

    Text Solution

    |

  13. VI A group elements are called chalcogens. This is because

    Text Solution

    |

  14. The general electronic configuration of d-block elements is

    Text Solution

    |

  15. The size of anion is more than neutral atom. This is due to

    Text Solution

    |

  16. Which of the following is correct with respect to size ?

    Text Solution

    |

  17. M^+ + IE2 =M^(+2)(g)+e^- This represents

    Text Solution

    |

  18. In a period, I.E increases due to

    Text Solution

    |

  19. The I.E of 'N' is more than oxygen even though the size of 'O' is less...

    Text Solution

    |

  20. The formula of chloride formed by eka silicon

    Text Solution

    |