Atoms and Periodic Table Review

Which Scientists' model states that atoms are tiny particles of different shapes?

• Dalton

• Democritus

• Thomson

• Rutherford

• Bohr

Which Scientists' model states that atoms are spheres that combine into compounds?

• Dalton

• Democritus

• Thomson

• Rutherford

• Bohr

Tags

NGSS.MS-PS1-1

Which Scientists' model states that atoms are positive matter with electrons scattered in it? (chocolate chip cookie)

• Dalton

• Democritus

• Thomson

• Rutherford

• Bohr

Tags

NGSS.MS-PS1-1

Which Scientist used gold foil to find atoms had a large POSITIVE center?

• Dalton

• Democritus

• Thomson

• Rutherford

• Bohr

Tags

NGSS.MS-PS1-1

Which Scientists' model suggests atoms have electrons that ORBIT or go around the positive center?

• Dalton

• Democritus

• Thomson

• Rutherford

• Bohr

Which scientist model is used today to describe electrons existing in "clouds"

• Dalton

• Bohr

• Thomson

• Rutherford

• Schrodinger

How many neutrons does an atom of Iron contain?

• 55.847

• 26

• 30

• 56

Tags

NGSS.MS-PS1-1

How many electrons does a balanced/neutral atom of oxygen contain?

• 8

• 16

• 0

• 15.9994

Tags

NGSS.MS-PS1-1

What is the atomic number of aluminum? What does this number represent?

• 17, number of neutrons

• 13, number of neutrons

• 13, number of protons OR electrons

• 27, number of neutrons + protons

Tags

NGSS.MS-PS1-1

What is the charge of a neutron

• Neutral ; No charge

• Positive

• Positive or negative, depending on the atom

• Negative