Home
Class 11
CHEMISTRY
In the modern periodic table, elements a...

In the modern periodic table, elements are arranged in

A

increasing mass

B

increasing volume

C

increasing atomic number

D

Alphabetically

Text Solution

Verified by Experts

The correct Answer is:
C
Increasing atomic number. Mosley found that atomic no. Was better fundamental properly than atomic weight.
Promotional Banner

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY OF PROPERTIES

    A2Z|Exercise Atomic Radius, Screening Effect And Penetration Effect|52 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY OF PROPERTIES

    A2Z|Exercise Ionisation Energy|41 Videos

  • CHEMICAL THERMODYNAMICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • CLASSIFICTION, PURIFICATION AND NOMENCLATURE OF ORGANIC COMPOUNDS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

In the modern period table, elements are arranged in order of increasing atomic number which is related to the electric configuration. Depending upon the type of orbitals receving the last electron, the elements in the periodic table have been diviced into four blocks viz s,p,d and f. The modern periodic table consists of 7 periods and 18 groups. Each period being with the filling of a new energy shell. In according with the Aufbua principle, the seven periods (1 to 7) have 2,8, 8, 18, 18, 32 and 32 elements respectively. The seventh period is still incomplete. To avoid the periodic table being too long, the two series of f-block elements, called lanthanodis and actionoids are placed at the bottom of the main body of the periodic table. Which of the elements whose atomic numbers are given below, cannot be accommodated in the present set up of the long form of the pariodic table?

In the modern period table, elements are arranged in order of increasing atomic number which is related to the electric configuration. Depending upon the type of orbitals receving the last electron, the elements in the periodic table have been diviced into four blocks viz s,p,d and f. The modern periodic table consists of 7 periods and 18 groups. Each period being with the filling of a new energy shell. In according with the Aufbua principle, the seven periods (1 to 7) have 2,8, 8, 18, 18, 32 and 32 elements respectively. The seventh period is still incomplete. To avoid the periodic table being too long, the two series of f-block elements, called lanthanodis and actionoids are placed at the bottom of the main body of the periodic table. The last element of p-block in 6th period is represented by the outermost electronic configuration.

In the modern period table, elements are arranged in order of increasing atomic number which is related to the electric configuration. Depending upon the type of orbitals receving the last electron, the elements in the periodic table have been diviced into four blocks viz s,p,d and f. The modern periodic table consists of 7 periods and 18 groups. Each period being with the filling of a new energy shell. In according with the Aufbua principle, the seven periods (1 to 7) have 2,8, 8, 18, 18, 32 and 32 elements respectively. The seventh period is still incomplete. To avoid the periodic table being too long, the two series of f-block elements, called lanthanodis and actionoids are placed at the bottom of the main body of the periodic table. The element with atomic number 57 belongs to:

In the modern periodic table, the elements are arranged in the order of :

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

A2Z-CLASSIFICATION OF ELEMENTS AND PERIODICITY OF PROPERTIES-Section D - Chapter End Test
  1. In the modern periodic table, elements are arranged in

    Text Solution

    |

  2. Which of the following statement is correct with respect to the proper...

    Text Solution

    |

  3. The pair of amphoteric hydroxides is

    Text Solution

    |

  4. Which of the following oxides is amphoteric is nature ?

    Text Solution

    |

  5. Which has the highest melting point?

    Text Solution

    |

  6. In which of the following arrangements , the order is not correct acco...

    Text Solution

    |

  7. Which one of the following arrangements represents the correct order o...

    Text Solution

    |

  8. What will be the order of first ionisation energy?

    Text Solution

    |

  9. which of the following configurations represents atoms of the elements...

    Text Solution

    |

  10. The first ionisation potential in electron volts of nitrogen and oxyge...

    Text Solution

    |

  11. The elements which occupy the peaks of ionisation energy curve are

    Text Solution

    |

  12. Which is the correct order of ionic sizes (At, No : Ce=58,Sn=50,Yb=70 ...

    Text Solution

    |

  13. A sudden large jump between the values of second and third ionisation ...

    Text Solution

    |

  14. Which element having the following electronic configuration has minimu...

    Text Solution

    |

  15. Arrange F,Cl,O,N in the decreasing order of electronegativy

    Text Solution

    |

  16. Two elements whose electronegativities are 1.2 and 3.0 the bond formed...

    Text Solution

    |

  17. Among Al(2)O,SiO(2),P(2)O(3) and So(2) the correct order of acid stren...

    Text Solution

    |

  18. The order in which the following oxides are arranged according to decr...

    Text Solution

    |

  19. Be and Al exhibit many properties which are similar. But the two eleme...

    Text Solution

    |

  20. The order of magnitude of ionic radii of ions Na^(+),Mh^(2+),Al^(3+) a...

    Text Solution

    |

  21. The order of the magnitude of first ionisation potentials of Be,B,N an...

    Text Solution

    |