Chemistry - Practicum 1

Which of the following Greek philosophers coined the term "Atomos" which is the root word for atom?

• Aristotle

• Plato

• Democritus

• Socrates

• Pythagoras

Which of the following scientists organized the known elements into a chart according to their atomic weights and even left spots open for future elements that he knew would eventually be discovered?

• John Newlands

• Dmitri Mendeleev

• Henry Moseley

• John Dalton

Which of the following scientists conducted the Cathode Ray Experiment?

• Robert Milikan

• John Dalton

• J.J. Thomson

• Henry Moseley

• Ernest Rutherford

Tags

NGSS.HS-PS2-5

Explain the significance of the Gold Foil Experiment in reference to atomic structure.

Draw an atom and label its structures and subatomic particles

Tags

NGSS.MS-PS1-1

If an atom had a total number of 12 protons, 13 neutrons, and 11 electrons, then what would be the atom's overall charge?

• Neutral

• 1+

• 1-

• Unknown

Which of the following Laws is defined as "mass is neither created nor destroyed?"

• Law of the Conservation of Mass

• Law of Definite Proportions

• Law of Multiple Proportions

• Law of Nuclear Forces

Tags

NGSS.HS-PS1-7

What is the name of the chemist who developed this model?

• Niels Bohr

• Ernest Rutherford

• JJ Thomson

• James Chadwick

Which subatomic particle was the first to be discovered and who was responsible for its discovery?

• Proton, discovered by Ernest Rutherford
• Neutron, discovered by James Chadwick
• Photon, discovered by Albert Einstein
• Electron, discovered by J.J. Thomson

Which subatomic particle was discovered during this experiment and which scientist was responsible for its discovery?

• Proton, discovered by Ernest Rutherford
• Electron, discovered by J.J. Thomson
• Neutron, discovered by James Chadwick
• Photon, discovered by Albert Einstein