Question

1 point
3. How Chlorine, Bromine,
Fluorine, Cobalt, and Hydrogen
be arranged in order to satisfy
the concept of Newlands'
Octaves? *
(a) Chlorine, Bromine, Fluorine,
Cobalt, Hydrogen
O
(b) Hydrogen, Fluorine, Bromine,
Cobalt, Bromine
(c) Fluorine, Chlorine, Cobalt,
Bromine, Hydrogen
(d) Cobalt, Bromine, Hydrogen,
Fluorine, Chlorine​

Answer 1

Answer:

In Newlands' table, chlorine, bromine and fluorine were placed in the same group in which cobalt and nickel were present.

Answer 2

According to the concept of Newlands' Octaves, given elements are arranged as follows:-

Hydrogen, Fluorine, Chlorine, Cobalt, Bromine (Option - B)

• Newland's law of Octaves states that the elements arranged according to increasing atomic mass show repetition of the Properties after every eighth element from the starting element.
• The Law of Octave holds true only up to Calcium.
• Octave was the first to describe proper periodic Patterns after Dobernier's triads.
• All these elements belong to the same vertical column - mainly the eighth element after every respective first element.
• Down the column, they are arranged according to increasing atomic masses, hence according to Newland's Octaves Law, they all have similar properties.
• Series according to atomic mass:- H>F>Cl>Co>Br