4.1 Quizizz PowerPoint Lesson

Open Ended

What did Demosritus call this particle?

Multiple Choice

Democritus believed that all matter consisted of extremely small particles that

• could be divided into equal parts.

• could be divided under certain circumstances.

• could not be divided.

Multiple Select

Which of the following are part of John Dalton's theory on why elements join the same way?

*Select ALL that apply!

• All elements are composed of atoms.

• Compounds contain atoms of only one element.

• All atoms of the same element have the same mass, and atoms of different elements have different masses.

• Compounds contain atoms of more than one element.

• In a particular compound, atoms of different elements always combine the same way.

Drag and Drop

​ ​

Placeholder

charges are evenlty distributed throughout an atom filled with a ​

Placeholder

charged mass of matter.

Drag these tiles and drop them in the correct blank above

Negative

Positively

Positive

Negatively

Multiple Choice

Thomson used an __ to learn more about atoms.

• electric current

• microscope

• telescope

Open Ended

Where does Rutherford's model put all of the positive charge?

Match

Match the following model of the atom with the scientist associated with it.

Dalton

"Billiard Ball"

Rutherford

Thomson

"Plum Pudding"

• Dalton

  "Billiard Ball"

• Rutherford

• Thomson

  "Plum Pudding"

Match

Match the following:

• Proton

• Neutron

• electron

positive charge

neutral or no charge

negative charge

• positive charge

• neutral or no charge

• negative charge

Multiple Select

Which of the three subatomic particles have almost the same mass?

*Select ALL that apply

• electron

• proton

• neutron

Multiple Choice

About how many electrons equals one proton in mass?

• 1000 times

• 2000 times

• 3000 times

• 4000 times

Multiple Choice

Which subatomic particle gives an element its identity?

• neutron

• proton

• electron

Open Ended

Why are atoms neutral?

Open Ended

Atomic number of an element equals the number of ...?

Open Ended

Number of neutrons + number of protons =

Open Ended

Why do isotopes of an element have different mass numbers?

Multiple Choice

Isotopes have the SAME

• atomic number.

• mass number.

• proton number.

• electron number.

Match

Match the following

• 6 P

  6 n

  6 e

• 6 P

  7 n

  6 e

• 6 P

  8 n

  6 e

Carbon-12

Carbon-13

Carbon-14

• Carbon-12

• Carbon-13

• Carbon-14