Modern periodic table based an order of ___________.

increasing atomic mass

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increasing atomic number

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decreasing atomic mass

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increasing density of atims

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Solution

The correct option is B increasing atomic number
Modern periodic table is used to organise all the known elements.

Elements in the modern periodic table are arranged in increasing order of their atomic numbers. There are 18 groups and 7 periods in the modern periodic table.

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Similar questions

Q. According to Mendeleev's periodic law, the elements were arranged in the periodic table in the order of:

(a) decreasing atomic numbers
(b) increasing atomic numbers
(c) decreasing atomic masses
(d) increasing atomic masses

Q. Based on modern classification of periodic table atomic number increases on moving from _________ in periodic table.

Q. Modern periodic table is based on atomic number.

Question 4
Which of the following statement(s) about the Modern Periodic Table are incorrect?

(i) The elements in the Modern Periodic Table are arranged on the basis of their decreasing atomic number

(ii) The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic masses

(iii) Isotopes are placed in adjoining group (s) in the Periodic Table

(iv)The elements in the Modern Periodic Table are arranged on the basis of their increasing atomic number

(a) (i) only
(b) (i), (ii) and (iii)
(c) (i), (ii) and (iv)
(d) (iv) only

Q. a) Define modern periodic law
b) The atomic number of an element 'X' is 20. To which group and period of modern periodic table it belongs ?

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Modern periodic table based an order of ___________.

The correct option is B increasing atomic number Modern periodic table is used to organise all the known elements. Elements in the modern periodic table are arranged in increasing order of their atomic numbers. There are 18 groups and 7 periods in the modern periodic table.

The correct option is B increasing atomic number
Modern periodic table is used to organise all the known elements.

Elements in the modern periodic table are arranged in increasing order of their atomic numbers. There are 18 groups and 7 periods in the modern periodic table.