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What is the basis of the long form of th...

What is the basis of the long form of the periodic table?

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What is the basis of splitting the long form of the periodic table into s, p, d and f blocks ? Mention the characteristic properties of the elements of each block.

How many elements are accommodated in the fifth period of the long form of the periodic table ?

Which of the following statements is/are true for the long form 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 periodic table?

What is modern periodic law? Mention the important features of the long form of the periodic table. Why is this periodic table supposed to be superior to other periodic tables ?

What will be the atomic number of the last member of the seventh period in the long form of the periodic table?

Isotopes of an element are placed at the same place in the long form of the periodic table.

In the modern periodic table, elements are arranged in order of increasing atomic numbers, which is related to the electornic configuration. Depending upon the type of orbitals receiving the last electron, the elements in the periodic table have been divided into four blocks, s, p,d and f. The modern periodic table consists of 7 periods and 18 groups. Each period begins with the filling of a new energy shell. in accordance with the Aufbau principal, 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 lanthanoids and actinoids, are placed at the bottom of the main body of the periodic table Which of the element whose atomic numbers are given below, cannot be accommodated in the present set up of the long form of the periodic 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. 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?

The statement that is false regarding the long form the periodic table is

ICSE-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-FILL IN THE BLANKS. TYPE QUESTIONS
  1. The element ekasilicon predicted by ...... was discovered by .. .. .. ...

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  2. .. .......... and not the ......... is the most fundamental property o...

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  3. Hydrogen may be placed at the top in group ......... as well as in gro...

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  4. Vertical columns of periodic table are known as

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  5. The sixth period contains-in all ............ elements among which .. ...

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  6. The elements of p-block possess electronic configuration of the type ....

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  7. What is the basis of the long form of the periodic table?

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  8. Most of the transition metal ions are ............... and........ in n...

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  9. Covalent radius is defined as .. ....... of the distance between the ...

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  10. Ca^(2+) has a smaller ionic radius than K^(+) because it has ............

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  11. The atomic radii ............ on moving down a group.

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  12. Anion is ..................... (larger / smaller) than the parent atom...

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  13. The screening effect of inner electrons on the nucleus causes

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  14. Noble gases possess .... .. ...... values of ionisation energies due t...

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  15. Give one word or a phrase for the following statement: The energy ...

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  16. Comment on the electron affinities of noble gases.

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  17. Second electron affinity of oxygen is ............ .

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  18. Why the melting and boiling points of halogens increase in going from ...

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