railway RRB Technician Grade 3 Mock Test 2024 General Science Chemistry Classification of Elements and Periodicity in Properties
Identify the correct statement about Newlands’ law of octaves.
1
He started with the element having the highest atomic mass (hydrogen) and ended at thorium which was the 56th element.
2
He started with the element having the lowest atomic mass (hydrogen) and ended at sodium.
3
He started with the element having the lowest atomic mass (hydrogen) and ended at aluminium.
4
He started with the element having the lowest atomic mass (hydrogen) and ended at thorium which was the 56th element.