Home
Class 11
CHEMISTRY
How many molecular orbitals are formed b...

How many molecular orbitals are formed by the combination of two lithium atoms?

Text Solution

AI Generated Solution

To determine how many molecular orbitals are formed by the combination of two lithium atoms, we can follow these steps: ### Step 1: Identify the Electron Configuration of Lithium Lithium (Li) has an atomic number of 3. Its electron configuration is: - 1s² 2s¹ This means that each lithium atom has two electrons in the 1s orbital and one electron in the 2s orbital. ...
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    ICSE|Exercise VERY SHORT ANSWER TYPE QUESTIONS|50 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    ICSE|Exercise SHORT ANSWER TYPE QUESTIONS|76 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    ICSE|Exercise NCERT TEXT-BOOK EXERCISES ( WITH HINTS AND SOLUTIONS)|47 Videos

  • CHEMICAL THERMODYNAMICS

    ICSE|Exercise NCERT TEXT-BOOK. EXERCISES|22 Videos

Similar Questions

Explore conceptually related problems

Label the molecular orbitals formed by the following combinations of atomic orbitals if Z-axis is the internuclear axis. 1 s - 1s

Label the molecular orbitals formed by the following combinations of atomic orbitals if Z-axis is the internuclear axis. 2p_y - 2P_y

Label the molecular orbitals formed by the following combinations of atomic orbitals if Z-axis is the internuclear axis. 2p_x -2p_x

Label the molecular orbitals formed by the following combinations of atomic orbitals if Z-axis is the internuclear axis. 2p_z - 2P_z

The _____ of an element are formed by the combination of two or more atoms of the same element.

Molecular orbitals are formed by the overlap of atomic orbitals. Two atomic orbitals combine atom from two molecular orbitals called vonding molecular orbital (BOM) and anti bonding molecular orbital (ABMO). Energy of anti bonding orbital is raised above the parent atomic orbitals that have combined and the energy of the bonding orbital is lowered than the parent atomic orbitals. Energies of various molecular orbitals for elements hydrogen to nitrogne increase in the order : sigma_(1s)ltsigma_(1s)^(**)ltsigma_(2s)ltsigma_(2s)^(**)lt(pi_(2py)~~pi_(2py))lt sigma_(2py)lt(pi_(2py)^(**)~~pi_(2py)^(**))ltsigma_(2pz)^(**) and for ozygen and fluorine order of energy of molecular orbitals id given below : sigma_(1s)ltsigma_(1s)^(**)ltsigma_(2s)ltsigma_(2s)^(**)ltsigma_(2pz)lt(pi _(2px)^(**)~~pi_(2py)^(**))sigma_(2pz)^(**) Different atomic orbitals of one atom combine wiht the atomic orbitals of the second atom whihc have comparable energies and proper orientation. Further, if the overlapping is head on, the molecular orbital is called 'Sigma' (sigma) and if the overlap is atreal, the molecular orbital is called 'pi', (pi). The molecular orbitals are filled with electrons according to the same rules as followed for filling of atomic orbitals. However, the order for filling is not the same for all molecules or their ions, Bond order is one the most ipmrtaint parameters to compare the strength of bonds. Which of the following pair is expected to have the same bond order ?

A bonding molecular orbital is formed when the electron waves of the combining atoms are in phase.

According to MOT, two atomic orbitals overlap resulting in the formation of molecular orbital formed. Number of atomic orbitals overlapping together is equal to the molecule orbital formed. The two atomic orbital thus formed by LCAO (linear combination of atomic orbital) in the phase or in the different phase are known as bonding and antibonding molecular orbitals respectively. The energy of bonding molecular orbital is lower than that of the pure atomic orbitals by an amount Delta . This known as the stabilization energy. The enerby of antibonding molecular orbital in increased by Delta' (destabilisation energy). Q. How many nodal plane is present in sigma_(s and p) bonding molecular orbital ?

According to MOT, two atomic orbitals overlap resulting in the formation of molecular orbital formed. Number of atomic orbitals overlapping together is equal to the molecule orbital formed. The two atomic orbital thus formed by LCAO (linear combination of atomic orbital) in the phase or in the different phase are known as bonding and antibonding molecular orbitals respectively. The energy of bonding molecular orbital is lower than that of the pure atomic orbitals by an amount Delta . This known as the stabilization energy. The enerby of antibonding molecular orbital in increased by Delta' (destabilisation energy). Q. How many nodal plane is present in sigma_(s and p) bonding molecular orbital ?

According to MOT, two atomic orbitals overlap resulting in the formation of molecular orbital formed. Number of atomic orbitals overlapping together is equal to the molecule orbital formed. The two atomic orbital thus formed by LCAO (linear combination of atomic orbital) in the phase or in the different phase are known as bonding and antibonding molecular orbitals respectively. The energy of bonding molecular orbital is lower than that of the pure atomic orbitals by an amount Delta . This known as the stabilization energy. The enerby of antibonding molecular orbital in increased by Delta' (destabilisation energy). Q. which of the following combination of orbitals is corrects?

ICSE-CHEMICAL BONDING AND MOLECULAR STRUCTURE-REVIEW EXERCISES
  1. Write the molecular orbital configuration of the following species : ...

    Text Solution

    |

  2. If PsiA and PsiB are the wave functions of two combining orbitals, wha...

    Text Solution

    |

  3. How many molecular orbitals are formed by the combination of two lithi...

    Text Solution

    |

  4. Label the molecular orbitals formed by the following combinations of a...

    Text Solution

    |

  5. Label the molecular orbitals formed by the following combinations of a...

    Text Solution

    |

  6. Label the molecular orbitals formed by the following combinations of a...

    Text Solution

    |

  7. Label the molecular orbitals formed by the following combinations of a...

    Text Solution

    |

  8. If Z-axis is the internuclear axis, which of the following combination...

    Text Solution

    |

  9. If Z-axis is the internuclear axis, which of the following combination...

    Text Solution

    |

  10. If Z-axis is the internuclear axis, which of the following combination...

    Text Solution

    |

  11. If Z-axis is the internuclear axis, which of the following combination...

    Text Solution

    |

  12. If Z-axis is the internuclear axis, which of the following combination...

    Text Solution

    |

  13. If Z-axis is the internuclear axis, which of the following combination...

    Text Solution

    |

  14. Arrange the following species in the decreasing order of their bond di...

    Text Solution

    |

  15. Arrange the following species in the decreasing order of their bond di...

    Text Solution

    |

  16. Why is the bond energy of superoxide ion (O(2)^(-)) less than that of ...

    Text Solution

    |

  17. On the basis of molecular orbital theory predict which of the followin...

    Text Solution

    |

  18. On the basis of molecular orbital theory predict which of the followin...

    Text Solution

    |

  19. Why does N2 possess a higher bond order than N(2)^(+) ion?

    Text Solution

    |

  20. Why is the bond energy of superoxide ion (O(2)^(-)) less than that of ...

    Text Solution

    |