Question

According to Newland's law of octaves, which elements are expected to resemble carbon and nitrogen respectively?.

Answer 1

Answer:

Hydrogen

John Newlands arranged the known elements in increasing order of their atomic masses. He started with the element having the lowest atomic mass ( hydrogen ) and ended at thorium which was the 56

th

. According to his law, when elements are arranged in order of their increasing atomic masses, the properties of 8

th

succeeding element resemble with that of the first one. The properties of fluorine are similar to those of hydrogen because fluorine is eight-element starting from hydrogen.

Answer 2

According to Newland's law of octaves, the elements that are expected to resemble carbon and nitrogen are silicon and phosphorus respectively.

Explanation:

• Newton arranged the elements in increasing order of their atomic mass.
• According to his law of octaves, the first element resembles in properties with the eighth element.
• On the basis of this law, every element has similar properties as its eighth element.
• Therefore, a gap of seven elements lies between two elements of similar properties.
• The element which resembles carbon is the eighth element after carbon, i.e., silicon ( $\[Si\]$).
• The element which resembles nitrogen is the eighth element after nitrogen, i.e., phosphorus ($P$).

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