Unit 2: Review of the Atom
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14 Terms
What 2 things does the nucleus contain?
Protons (+)
Neutrons (0)
What surrounds the nucleus?
Electrons (-)
Why are electrons (-) bound to the nucleus?
Electromagnetic force
What is binding energy?
Energy required to separate atomic particles within the atom
Do inner or outer shell electrons have a higher binding energy?
Inner
What is an x-ray?
A form on ionizing electromagnetic radiation
How/when is an xray produced?
When electron kinetic energy converts into xray energy
What is the Law of Conservation of Energy?
Energy can neither be created or destroyed. It can only be transformed from one energy state to another.
True or false: X-rays have an extremely long wavelength?
False
(Extremely short wave length measured in nanomemeters)
How many nanometers are medical X-rays?
0.05-0.1nm
True or False: shorter wavelength = higher energy
true
what happens to the atom when electrons get stripped off?
the atom becomes positively charged
What is the difference between Somatic and Genetic?
Somatic= affects body
Genetic= affects genes (DNA)