Home
Class 11
CHEMISTRY
The radioactive alkali metal is ...........

The radioactive alkali metal is ...............

Text Solution

AI Generated Solution

**Step-by-Step Solution:** 1. **Identify the Group of Elements**: The question asks for a radioactive alkali metal. Alkali metals belong to Group 1 of the periodic table. The alkali metals include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). 2. **Determine Radioactive Alkali Metals**: Among the alkali metals listed, we need to identify which one is radioactive. Francium (Fr) is known to be the only radioactive alkali metal. 3. **Research Francium's Properties**: Francium is highly radioactive. Its most stable isotope has an atomic mass of 223. ...
Promotional Banner

Topper's Solved these Questions

  • S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS )

    MODERN PUBLICATION|Exercise Revision Exercises (Objective/Very Short answer questions(One Word/ Very Short sentence Answer ) )|25 Videos

  • S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS )

    MODERN PUBLICATION|Exercise Revision Exercises (Objective/Very Short answer questions( Short Answer Questions ) )|57 Videos

  • S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS )

    MODERN PUBLICATION|Exercise Revision Exercises (Objective/Very Short answer questions(True or False Questions ))|10 Videos

  • REDOX REACTIONS

    MODERN PUBLICATION|Exercise COMPETITION FILE (Objective Questions) (C. MULTIPLE CHOICE QUESTIONS)|9 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    MODERN PUBLICATION|Exercise COMPETITION FILE (INTEGER TYPE AND NUMERICAL VALUE TYPE QUESTIONS)|10 Videos

Similar Questions

Explore conceptually related problems

The alkali metals

The alkali metals:

Alkali metals are

Alkali metals are

Alkali metals show-

Weak reductant in alkali metal is-

Which of the following is radioactive alkali metal ?

In the case of the alkali metals-

MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -Revision Exercises (Objective/Very Short answer questions(Fill in the blanks) )
  1. The radioactive alkali metal is ...............

    Text Solution

    |

  2. Lithium shows diagonal relationship with

    Text Solution

    |

  3. Which of the following bicarbonate does not exist in solid state?

    Text Solution

    |

  4. Oxidation stae of sodium in sodium peroxide is ............

    Text Solution

    |

  5. Li reacts directly with nitrogen to from lithium nitride.

    Text Solution

    |

  6. Solvay process is used for the manufacturing of

    Text Solution

    |

  7. Alkali metals readily dissolve in liquid ammonia to give blue coloured...

    Text Solution

    |

  8. The ionisation energy of alkali metals decreases from Li to Cs bacause

    Text Solution

    |

  9. Which of the following compound(s) will impart a golden yellow colour ...

    Text Solution

    |

  10. Plaster of paris is

    Text Solution

    |

  11. Assertion (A): Lithium chloride is predominantly covalent compound. ...

    Text Solution

    |

  12. Assertion (A): Na(2)SO(4) is soluble in water while BaSO(4) is insolub...

    Text Solution

    |

  13. Al(OH)(3) is amphoteric is nature. Al-O and O-H bonds can be borken ...

    Text Solution

    |

  14. Assertion: Barium is not required for normal biological function in hu...

    Text Solution

    |

  15. Assertion: Li resembles with Mg in properties Reason: Li^(+) has alm...

    Text Solution

    |

  16. Assertion (A): Alkali metals impart colour to the flame. Reason (R )...

    Text Solution

    |

  17. Assertion (A): Sulphur is estimates as BaSO(4) and not as MgSO(4). R...

    Text Solution

    |

  18. Statement -1: Of the chloride of alkaline earth metals BeCl(2) is cova...

    Text Solution

    |

  19. Be forms [BeF(4)]^(2-), but Al forms [AiF(6)]^(3-). Reason (R ): Be...

    Text Solution

    |

  20. Assertion : K, Rb and Cs can also form superoxides. Reason : Their ...

    Text Solution

    |