Home
Class 11
CHEMISTRY
Moden periodic law states that the prope...

Moden periodic law states that the properties of the elements are periodic functions of their

A

electron numbers

B

proton numbers

C

neutron numbers

D

nucleon numbers

Text Solution

Verified by Experts

The correct Answer is:
B
Atomic number is always equal to the number of protons in the nucleus of the element.
Promotional Banner

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS

    R SHARMA|Exercise Follow-up Test 2|1 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS

    R SHARMA|Exercise Follow-up Test 3|1 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS

    R SHARMA|Exercise Follow-up Test 1|1 Videos

  • CHEMICAL BONDING

    R SHARMA|Exercise Archives|73 Videos

  • EQUILIBRIUM

    R SHARMA|Exercise ARCHIVES|69 Videos

Similar Questions

Explore conceptually related problems

Mendeleev's periodic law states that the properties of element are periodic function of their

Properties of elements are periodic function of their

In the modern periodic table, the elements are arranged in the increasing order of their atomic number. This arrangement is based on the modern periodic law, which states that the properties of elements are a periodic function of their atomic numbers. In the modern periodic table, each column is called a group and each row is called a period. Elements within the same group show similarity and gradation in properties. This is due to the same number of electroms in the outermost shell . Based on the above paragraph, answer the following question: How many groups are there in the modern periodic table?

In the modern periodic table, the elements are arranged in the increasing order of their atomic number. This arrangement is based on the modern periodic law, which states that the properties of elements are a periodic function of their atomic numbers. In the modern periodic table, each column is called a group and each row is called a period. Elements within the same group show similarity and gradation in properties. This is due to the same number of electroms in the outermost shell . Based on the above paragraph, answer the following question: What is the number of valence electrons in an element of group 1 and group 18 respectively?

In the modern periodic table, the elements are arranged in the increasing order of their atomic number. This arrangement is based on the modern periodic law, which states that the properties of elements are a periodic function of their atomic numbers. In the modern periodic table, each column is called a group and each row is called a period. Elements within the same group show similarity and gradation in properties. This is due to the same number of electroms in the outermost shell . Based on the above paragraph, answer the following question: What is the trend in the variation of valency while going down a group?

In the modern periodic table, the elements are arranged in the increasing order of their atomic number. This arrangement is based on the modern periodic law, which states that the properties of elements are a periodic function of their atomic numbers. In the modern periodic table, each column is called a group and each row is called a period. Elements within the same group show similarity and gradation in properties. This is due to the same number of electroms in the outermost shell . Based on the above paragraph, answer the following question: Which pair of elements do you think will have similar properties? a. Sodium and Argon b. Sodium and Potassium c. Potassium and Neon

R SHARMA-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS-Follow-up Test
  1. Which of the following gives a straight line?

    Text Solution

    |

  2. Which of the following correctely describes Moseley's law?

    Text Solution

    |

  3. Moden periodic law states that the properties of the elements are peri...

    Text Solution

    |

  4. The physical and chemical properties of the elements denpend upton the...

    Text Solution

    |

  5. The cause of periodicity in properties of the elements is the repetiti...

    Text Solution

    |

  6. Which of the following numbers are called magic numbers?

    Text Solution

    |

  7. The short form of the modern periodic table of the elements (also call...

    Text Solution

    |

  8. In the modified Mendeleev's periodic table, the 18 vertical columns we...

    Text Solution

    |

  9. In the short form of the modern periodic table, the period number corr...

    Text Solution

    |

  10. In the short form of the modern periodic table, the first period conta...

    Text Solution

    |

  11. In the short from of the modern periodic table,elements of both sixth ...

    Text Solution

    |

  12. The naming of the new elements had been traditionally the privilege of...

    Text Solution

    |

  13. Unnilennium is the systematic name for element having atomic number

    Text Solution

    |

  14. Which of the following elements have been duly synthesized and officia...

    Text Solution

    |

  15. What would be the IUPAC name and symbol for the element with atomic nu...

    Text Solution

    |

  16. Total number of element in each period is twice the number ofbeing fil...

    Text Solution

    |

  17. The first period (n = 1) starts with the filling ofsubshell.

    Text Solution

    |

  18. The second period (n = 2) involves the filling up to electron inatomic...

    Text Solution

    |

  19. The third period (n = 3) involves the filling up to electrons inelemen...

    Text Solution

    |

  20. The fourth period (n = 4) does not involve the filling up of electrons...

    Text Solution

    |