WorksheetsHISTORY OF PERIODIC TABLE
Total questions: 10
Worksheet time: 5mins
Who is the Father of Periodic Table of Elements?
Lothar Meyer
Dmitri Mendeleev
John Newlands
Henry Moseley
Who discovered the Law of Octaves?
Henry Moseley
Lothar Meyer
Antoine Lavoisier
John Newlands
He classified some elements into groups of three, which he called triads.
John Newlands
Johann Wolfang Döbereiner
Antoine Lavoisier
Lothar Meyer
Why were there blank spaces left in Mendeleev's periodic table?
He didn't know what to put there.
Undiscovered elements not yet known.
Multiple elements could have fit
He forgot to add the elements in
Which set of triads DOES NOT fit Dobereiner's Law of Triads?
lithium, sodium, potassium
calcium, strontium, barium
phosphorus, arsenic, antimony
chlorine, bromine, iodine
In which order do we need to put sodium, potassium, lithium, for Dobereiner's Law of Triads ?
lithium, sodium, potassium
sodium, lithium, potassium
potassium ,lithium, sodium
sodium, potassium, lithium
Given that X, Y, Z are triads. Atomic masses of X and Z are 32,125 respectively. Then what is the atomic mass of Y is?
157
93
78.5
75.5
He discovered the "FOUR NOBLE GASES"
William Ramsay
William Shakespeare
John Wolfgang
John Newlands
Nweland found that eighth element have sam properties as ____ element
third
first
second
sixth
Who developed the Periodic Table of Elements?
Dmitri Mendeleev
Dmitri Mendeleev and Scientists
Dmitri Mendeleev and Julius Lothar Meyer
Dmitri Mendeleev, Julius Lothar Meyer and other Scientists
