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Name of Russian chemist who said that th...

Name of Russian chemist who said that the properties of elements are a periodic function of their atomic masses.

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Mendeleev
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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: 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: 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 trend in the variation of valency while going down a group?

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

LAKHMIR SINGH & MANJIT KAUR-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise
  1. (a) On what basis did Mendeleev arrange the elements in his periodic t...

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  2. State whether the following statements are true or false: (a) Newlan...

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  3. Name of Russian chemist who said that the properties of elements are a...

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  4. Rewrite the following statements after correction, if necessary: (a)...

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  5. Triads And Law Of Octaves

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  6. A,B and C are the elements of a Deobereiner's triad. If th atomic mass...

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  7. X and Y are the two elements having similar properties which obey Newl...

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  8. What was the Mendeleev's basis of the classification of elements.?

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  9. In the classificatioin of the then known elements, Mendeleev was guide...

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  10. Name two elements whose properties were predicted on the basis of thei...

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  11. The three elements predicted by Mendeleev from the gaps in his periodi...

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  12. Name two elements whose properties were predicted on the basis of thei...

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  13. A,B and C are the elements of a Deobereiner's triad. If th atomic mass...

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  14. Which group of elements could be placed in mendeleev's periodic table ...

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  15. Fill in the following blanks with suitable words: (a) The basis for...

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  16. (a) What is meant by (i) a group and (ii) a period in a periodic table...

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  17. NEWLAND'S LAW OF OCTAVES

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  18. (a) State the merits of Mendeleev's classification of elements. (b) ...

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  19. (a) How do the properties of eka-aluminium element predicted by Mendel...

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  20. (a) Why do we classify elements? (b) What were the two criteria used...

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