What is the correct sequence

1. Newland's law of octaves

2. Law of triads.

3. Modern periodic table.

4. Mendeleev's periodic table.

2-1-4-3

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1-2-3-4

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3-2-1-4

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3-2-4-1

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Solution

The correct option is A
2-1-4-3

At first - Doberneiner's triads, then Newland's law of octaves and further Mendeleev's periodic table and then modern periodic table. Modern periodic table is the periodic table which we follow now. It is arranged on the basis of the atomic number of elements.
Therefore, 2-1-4-3 is the correct answer.

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Similar questions

Assign the position of the element having outer electronic configuration

(i) ns² np⁴ for n = 3 (ii) (n - 1)d² ns² for n = 4, and (iii) (n - 2) f⁷ (n - 1)d¹ ns² for n = 6, in the periodic table.

(i) Comprehension given below is followed by some multiple choice questions. Each question has one correct option. Choose the correct option. In the modern periodic table, elements are arranged in order of increasing atomic numbers which is related to the electronic configuration. Depending upon the type of orbitals receiving the last electron, the elements in the periodic table have been divided into four blocks, viz 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 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 lanthanoids and actionoids are placed at the bottom of the main body of hte periodic table
The element with atomic number 57 belongs to
(a) s- block ( b) p-block (c) d- block (d) f- block

(ii) The last element of the p - block in 6th period is represented by the outermost electronic configuration.
(a) $7 s^{2} 7 p^{6}$ (b) $5 f^{14} 6 d^{10} 7 s^{2} 7 p^{0}$
(c) $4 f^{14} 5 d^{10} 6 s^{2} 6 p^{6}$ (d) $4 f^{14} 5 d^{10} 6 s^{2} 6 p^{4}$

(iii) Which of the elements whose atomic numbers are given below, cannot be accommodated in the present set up of the long frm of the periodic table?
(a) 107 (b) 118 (c) 126 (d) 102

(iv) The electronic configuration of the element which is just above the element with atomic number 43 in the same group is .....
(a) $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{5} 4 s^{2}$
(b) $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{5} 4 s^{3} 4 p^{6}$
(c) $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{6} 4 s^{2}$
(d) $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{7} 4 s^{2}$

(v) The elements with atomic numbers 35, 53 and 85 are all ..
(a) noble gases (b) halogens (c) heavy metals (d) light metals

What is the correct sequence in which the following law was given?

1. Newland's law of octaves

2. Law of triads.

3. Modern periodic table.

4. Mendeleev's periodic table.

1. State the modern periodic law.

2. Name the scientist who stated the law.

3. How many groups and periods does modern periodic table have?

Q. Which of the following sets of quantum numbers is correct for an electron in

4 f -

orbital?

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What is the correct sequence 1. Newland's law of octaves 2. Law of triads. 3. Modern periodic table. 4. Mendeleev's periodic table.

What is the correct sequence

1. Newland's law of octaves

2. Law of triads.

3. Modern periodic table.

4. Mendeleev's periodic table.