Among the following which are the two elements that Newlands placed in the same slot and positioned in the same column with fluorine, chlorine and bromine?

Cobalt and calcium

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Cobalt and nickel

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Lithium and sodium

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Nickel and calcium

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Solution

The correct option is B Cobalt and nickel

In order to fit elements into law of octaves, Newland not only adjusted two elements in the same slot but also adjusted some unlike elements under the same column.

Cobalt and nickel are in the same slot and are positioned in the same column with flourine, chlorine and bromine possessing different properties than these elements.

Iron possessing similar properties as cobalt and nickel, is placed far away from these elements.

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Similar questions

Among the following which are the two elements that Newlands placed in the same slot and positioned in the same column with fluorine, chlorine and bromine?

Q. Amongst the following, which are the two elements that Newlands placed in the same slot and positioned in the same column with flourine, chlorine and bromine?

Q. In Newland's table, cobalt and were placed in the same column along with fluorine, chlorine and bromine.

Q. Fluorine (F), Chlorine (Cl), Bromine (Br) and other halogens (X) are placed together in the same group because all these elements can form uni-negative ions

(F^{-}, C l^{-}, B r^{-}, X^{-})

called halides. Identify the element that can form such uninegative ion and can be placed in the same group along with halogens.

Q. In Newlands' table, which of the following elements was not placed in the same group in which cobalt and nickel were present?

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