Who discovered the law of octaves?

• John Octaves

• Albert Einstine

• Antoni Van Lavoisier

• John Newlands

Answer explanation

The properties of elements repeated at

• 8th Atom

• 12th atom

• 18th atom

• 112th atom

Answer explanation

The law of octaves only worked until:

• Sodium

• Magnesium

• Galium

• Calcium

The effect of periodicity amongst elements did not fit in the mind of chemists of that time

• True

• False

How many elements were discovered at Newlands times?

• 188

• 12

• 56

• 77

The theory proposed by John Newlands was similar to the law of octaves in:

• Music Notes

• Construction

• Aerodynamics

• Quantum Mechanics

John Newlands law of octaves was applicable for ALL the elements

• True

• False

Answer explanation

The law of octaves is applicable only for the 1st 20 elements

Which scientist recognised Newlands work and worked upon it for establishing a new version of the periodic table

• Dmitri Mendeleev

• John Dalton

• Robert Hooke

• Stephen Hawkings

Who is known as the father of the periodic table?

• Mark Antonie

• Dmitri Mendeleev

• John Dalton

• Issac Newton

What is surname of John

• Newlands

• Dalton

• Chaudhri

• Khan