# Atomic Structure-Quantum Mechanical Model of Atom (KVPY Stream-SA (Class 11) Chemistry): Questions 1 - 4 of 4

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## Question number: 1

» Atomic Structure » Quantum Mechanical Model of Atom

Appeared in Year: 2011

### Question

The set of principal (n), azimuthal (l) and magnetic (ml) quantum numbers that is not allowed for the electron in H-atom is

### Choices

Choice (4) | Response | |
---|---|---|

a. | n = 3, l = 1, ml = –1 | |

b. | n = 2, l = 1, ml = 0 | |

c. | n = 3, l = 0, ml = 0 | |

d. | n = 2, l = 2, ml = –1 |

## Question number: 2

» Atomic Structure » Quantum Mechanical Model of Atom

Appeared in Year: 2015

### Question

Maximum number of electrons that can be accommodated in the subshell with azimuthal quantum number , is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 16 | |

b. | 10 | |

c. | 18 | |

d. | 8 |

## Question number: 3

» Atomic Structure » Quantum Mechanical Model of Atom

### Question

A particle contains 37 electrons, 37 protons and 50 neutrons. Find the mass deficiency of this atom is the actual calculated mass is found to be 86.909187

(Mass of electron-0.00054858amu)

(Mass of proton-1.0073amu)

(Mass of neutrons-1.0087amu)

### Choices

Choice (4) | Response | |
---|---|---|

a. | 0.657amu/atom | |

b. | 0.234amu/atom | |

c. | 1.54amu/atom | |

d. | 0.816amu/atom |

## Question number: 4

» Atomic Structure » Quantum Mechanical Model of Atom

### Question

Which of the following set of quantum numbers are permitted?

### Choices

Choice (4) | Response | |
---|---|---|

a. | n = 3, | |

b. | n = 2, | |

c. | n = 3, | |

d. | n = 2, |