How many elements exist in nature according to Newlands law of octaves?
A46
B56
C76
D36
Answer:
B. 56
Read Explanation:
According to Newlands' Law of Octaves, 56 elements were assumed to exist in nature.
He started with the element with the lowest atomic mass (hydrogen) and ended with Thorium which was the 56th element.
He found that every eighth element has the same properties as the first. He compared it to the octave found in music.
That's why he called it the 'law of octaves'.
This is known as 'Newlands' Law of Octaves'.
The properties of lithium and sodium were found to be similar in Newlands' octave.