Home
Class 11
CHEMISTRY
The number of covalent bonds formed by b...

The number of covalent bonds formed by beryllium is

A

2

B

3

C

4

D

5

Text Solution

Verified by Experts

The correct Answer is:
A
Valance shell configuration of Be in ground state is `2s^(2)`. By unpairing and exciting one of the `2se^(-)s`, it can form two covalent bonds:
Promotional Banner

Topper's Solved these Questions

  • THE S BLOCK ELEMENTS

    R SHARMA|Exercise Question Bank (Level- IV)|10 Videos

  • THE P BLOCK ELEMENTS

    R SHARMA|Exercise Archives|40 Videos

  • THERMODYNAMICS

    R SHARMA|Exercise Archives|59 Videos

Similar Questions

Explore conceptually related problems

A true covalent bond is formed by

A true covalent bond is formed by

How is covalent bond formed ?

The number of covalent bonds formed during the formation of r - DNA .

R SHARMA-THE S BLOCK ELEMENTS-ARCHIVES
  1. The correct order of solubility of the sulphates of alkaline earth met...

    Text Solution

    |

  2. Which of the following is not an ore of magnesium?

    Text Solution

    |

  3. Photoelectric effect is the maximum in

    Text Solution

    |

  4. Which of the following is monovalent?

    Text Solution

    |

  5. Superoxide of potassium is

    Text Solution

    |

  6. Carnallite on electrolysis gives

    Text Solution

    |

  7. On dissolving moderate amount of sodium metal in liquid ammonia at low...

    Text Solution

    |

  8. Sodium metal reacts with Al(2)O(3) at high temperature to give a sodiu...

    Text Solution

    |

  9. Aqueous NaCl solution is electrolyzed using platinum electodes. What i...

    Text Solution

    |

  10. What are the products formed when Li(2)CO(3) undergoes decomposition?

    Text Solution

    |

  11. What is the reaction occuring at the anode in Down's process for the e...

    Text Solution

    |

  12. In the Solvary process of manufacture of Na(2)CO(3). the byproducts ar...

    Text Solution

    |

  13. In electrolysis of NaCl when Pt electrode is taken H(2) is liberated a...

    Text Solution

    |

  14. When sodium is treated with sufficient oxygen/air, the product obtaine...

    Text Solution

    |

  15. which of the following has the lowest melting point ?

    Text Solution

    |

  16. Magnesium can be obtanied by

    Text Solution

    |

  17. A solution of MgCl(2) in water has pH

    Text Solution

    |

  18. In view of their low ionisation energies, the alkali metals are

    Text Solution

    |

  19. On heating quicktime with coke in an electric furnace, we get

    Text Solution

    |

  20. The number of covalent bonds formed by beryllium is

    Text Solution

    |