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WorksheetsScientists and the development of periodic table
Total questions: 15
Worksheet time: 8mins
Do you remember who was responsible to arrange the known elements into "triads"?
a. Alexander Chancourtois
b. Dmitri Mendeleev
c. John Newland
d. Johann Döbereiner
Who was a German, developed the first periodic table in 1864 but was not published until 1870?
a. Alexander Chancourtois
b. Julius Lothar Meyer
c. John Newland
d. Johann Döbereiner
Who said; "There is no talent, neither genius without hard work"?
a. Alexander Chancourtois
b. Dmitri Mendeleev
c. John Newland
d. John Newland
Who proposed the law of Octaves in the arranging the elements in the periodic table?
a. Johann Döbereiner
b. Dmitri Mendeleev
c. John Newland
d. Julius Lothar Meyer
Who was the pioneer in arranging the elements in order of atomic number?
a. Johann Döbereiner
b. Henry Moseley
c. Dmitri Mendeleev
d. William Ramsay
This scientist predicted the existence and properties of unknown elements which he called eka-aluminum, eka-boron, and eka-silicon
a. Johann Döbereiner
b. Dmitri Mendeleev
c. John Newland
d. Julius Lothar Meyer
What property did Mendeleev use to arrange the elements in a table?
a. alphabetical
b. density
c. melting point
d. atomic mass
This model was developed after J.J. Thomson discovered electrons, a particle smaller than an atom. It shows electrons floating freely in a positive space.
a. The "Rutherford Model" of the atom
b. The "Plum Pudding Model" of the atom
c. Democritus's model of the atom
d. The "Solar System Model" of the atom
Ernest Rutherford discovered that atoms were mostly _________________.
a. negatively charged
b. positively charged
c. electron
d. empty space
Which scientist is credited for creating the "solar system" model of the atom?
a. Schrodinger
b. Rutherford
c. Bohr
d. Thompson
Who discovered the neutron?
a. Chadwick
b. Rutherford
c.Boseman
d. Bohr
Whose model of an atom is displayed in the picture?
a. Thomson
b. Rutherford
c. Dalton
d. Bohr
Whose model of an atom is displayed in the picture?
a. Rutherford
b. Dalton
c. Thomson
d. Bohr
In the modern periodic table of an elements are arranged by:
a. atomic mass
b. atomic number
c. valence electrons
d. number of isotopes
Which below is an element?
a. O2
b. Sugar
c. Air
d. sulfur
