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In the modern long form of the periodic ...

In the modern long form of the periodic table, elements are arranged in the increasing order of

A

Atomic mass

B

Atomic number

C

Mass number

D

Metallic character.

Text Solution

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The correct Answer is:
B
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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: State the law on which modern periodic table is based.

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?

Knowledge Check

  • In the modern long from of the periodic table, the elements are arranged in the increasing order of

    A
    atomic mass
    B
    atomic number
    C
    mass numebr
    D
    isotopic number

  • In the modern periodic table, elements are arranged in

    A
    increasing mass
    B
    increasing volume
    C
    increasing atomic number
    D
    Alphabetically

  • In a period, the elements are arranged in the order of -

    A
    Constant charges in the nucleus
    B
    Equal charges in the nucleus
    C
    Decreasing charges in the nucleus
    D
    Increasing charges in the nucleus

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    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?

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

    In the modern Periodic Table, the elements are arranged in

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