Nuclear Reactions Revision

The world around you is made up of​ (a)   . Some of the atoms have ​ (b)   ​ (c)   .These atoms then can eject particles or electromagnetic waves as ​ (d)  

• atoms
• unstable
• nuclei
• radiation
• isotopes
• radioactive
• alchmist

Tags

NGSS.HS-PS1-8

​ (a)   decay occurs when a ​ (b)   ejects ​ (c)  

• Beta
• nucleus
• an electron
• a proton
• a neutron
• an atom

Tags

NGSS.HS-PS1-8

Radiotherapy is a ​ (a)   ​ of cancer treatment where the ​ (b)   is exposed to ​ (c)   concentrations of radiation

• type
• tumor
• high
• low

Tags

NGSS.HS-PS4-3

Match the following

• alpha particles can be stopped by

• aluminium

• beta radiation can be stopped by

• paper

• gamma radiation can be stopped by

• thick layers of lead

The nucleus contains

• electrons

• protons

• protons and electrons

• protons and neutrons

Tags

NGSS.HS-PS1-8

This is an example of

• neutron decay

• alpha decay

• beta decay

• gamma radiatio

Tags

NGSS.HS-PS1-8

Reorder the following in terms of mass

• alpha particles

• beta particles

• gamma radiation

Reorder the following in terms of speed

• alpha radiation

• gamma radiation

• beta radiation

The rate at which nuclear day takes place is measured by the isotopes half-life. The half-life is the time taken for 50% fo the nuclei to decay. Gold-200 has a half-life of 48 minutes. Cobalt-60 has a half lif of 5.3 years. Uranium-238 has a half life of 4.5 million years. Order these from the longest to the shortest in terms of half-life.

• uranium-238

• cobalt-60

• Gold-200

Tags

NGSS.HS-PS1-8

Match the following charges to the radiation

• 0

• alpha

• +2

• gamma

• -1

• beta

Tags

NGSS.HS-PS1-8