What conclusions were drawn from Ernest Rutherford's gold foil experiment?

Select TWO correct answers.

Tags

NGSS.HS-PS1-8

A student observes a crack in a test tube that will be used for a lab. What should the student do with the cracked test tube?

• Continue to use the cracked test tube in the experiment.

• Dispose of the cracked test tube in the normal trash.

• Wash the cracked test tube and set it on a drying rack.

• Notify the teacher and the teacher will dispose in a designated container.

What characteristics do nuclear fission and fusion reactions have in relation to each other?

Select the correct answer in each row.

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

The equation represents the natural decay of sodium-24.

• beta decay.

• fusion.

• gamma decay.

• alpha decay.

Tags

NGSS.HS-PS1-8

Which of the following led scientists to suggest limiting the number of X-rays a person receives annually?

• the discovery that X-rays are able to harm cells in the body.

• the detection of X-ray produced tumors immediately after X-ray exposure.

• the invention of devices more effective than X-rays.

• the development of more efficient X-ray machines.

Tags

NGSS.HS-PS4-3

Match the following

• Has the smallest mass

• Electron

• Carries a positive charge

• Proton

• Neutrally charged

• Neutron

Tags

NGSS.HS-PS1-8

When there is a nuclear explosion, a concrete wall is needed to provide protection. Which type of radiation needs the thick

concrete wall to stop it?

Tags

NGSS.HS-PS1-8

The student pictured is about to go into a chemistry lab to conduct an investigation using hazardous chemicals and fire. Organize the actions into safe and unsafe practices.

Groups:

(a) Safe Practices

,

(b) Unsafe Practices

• Tie back long hair

• Wear safety goggles

• Wear loose fitting clothing

• wear long baggy sleeves

Which model of the atom was used as a result of JJ Thomson's cathode ray experiments?

• Plum pudding model

• Nuclear model

• Planetary model

• Quantum mechanical model

Carbon-12 and carbon-13 are both naturally occurring isotopes of carbon. They have the same ______ number.