Worksheets2022 Chem, Atomic Theory & Structure Review-QUIZ
Total questions: 25
Worksheet time: 10mins
Which scientist is famous for his cathode-ray tube experiment ?
R. Milliken
E. Rutherford
W. Heisenberg
JJ. Thomson
The atomic number represents:
protons + neutrons
protons
neutrons
electrons + neutrons
Which scientist discovered that electrons move outside the nucleus in orbitals within a cloud?
N. Bohr
J. Chadwick
E. Schrodinger
L. DeBroglie
Which scientist thought electrons moved in orbits like planets circling the sun?
J. Dalton
N. Bohr
L. DeBroglie
R. Milliken
Which scientist is famous for his oil drop experiment and eventually discovering the size of the charge on an electron and the mass of the electron?
J. Chadwick
R. Milliken
J. Dalton
N. Bohr
Which scientist discovered the first sub-atomic particle?
JJ Thomson
E. Rutherford
J Dalton
E. Schrodinger
The sub-atomic particle that is negatively charged is
neutron
proton
electron
isotope
Which philosopher believed that matter was continuous and composed of only 5 elements(water, air, aether, earth, fire)?
N. Bohr
Democritus
E. Schrodinger
Aristotle
Which part of John Dalton's theory was incorrect?
matter is composed of atoms
atoms are indestructible, indivisible, uncuttable
atoms of the same element are identical in mass and composition
in chemical reactions, atoms are simply rearranged to make new compounds
atoms of different elements combine in simple proportions to make specific compounds
The subatomic particle that makes the atom unique:
electron
proton
neutron
isotope
Which scientist is responsible for discovering that most of the mass of the atom is centrally located and is positively charged?
J. Chadwick
N. Bohr
JJ Thomson
E. Rutherford
The law of definite proportions says:
mass cannot be created or destroyed
energy is conserved within a closed system
many compounds can be made from the same elements as long as their proportions by mass are different
specific compounds are made because the elements that make them up combine in very specific proportions by mass.
Which scientist thought the atom looked like plum pudding?
J. Dalton
E. Schrodinger
N. Bohr
JJ Thomson
The most massive particles in the atom is/are:
protons and electrons
the electron
neutrons and electrons
protons and neutrons
All of the following are true of Isotopes of a certain element EXCEPT:
different number of neutrons
different mass numbers
different atomic numbers
different atomic masses
The law of multiple proportions says:
mass cannot be created or destroyed
energy is conserved within a closed system
many compounds can be made from the same elements as long as their proportions by mass are different
specific compounds are made because the elements that make them up combine in very specific proportions by mass.
Which scientist used the Gold Foil experiment to help him discover the atom is mostly empty space?
W. Heisenberg
E Rutherford
R. Milliken
J. Chadwick
The mass number represents the following subatomic particles
protons
protons and electrons
protons and neutrons
electrons
