Unit 3

1. Ionization

1.1. is when an atom gains either a positive or negative charge

2. Hersenberg's Uncertainty Principle

2.1. we cannot know both location and speed simultaneously

3. Physical Properties & Changes

3.1. can be observed or measured without changing the composition of matter.

3.2. objects undergo a change that does not change their chemical nature

4. Isotopes

4.1. Atoms of the same element with different numbers of neutrons

5. e- configuration/abb conf

5.1. how electrons would be organized in an atom

6. Chemical Properties & Changes

6.1. substances are changed into different substances

6.2. release or gain of energy by an object.

7. Quantum Model/Mechanics

7.1. Quanta:

7.1.1. Smallest measureable unit

7.2. Primary Q.N.

7.2.1. tells which energy level an e- is found in

7.2.2. has to be whole numbers

7.2.3. represented by n

7.3. Azimuthal Q.N.

7.3.1. refers to subshell"shape-type"

7.3.2. the range is from 0-n

7.3.3. represented by l

7.4. Magnetic Location

7.4.1. specifies the exact orbital by orientation if the subshell

7.4.2. ranges from -l to l

7.4.3. represented by m sub l

8. Periodic Trends

8.1. electron affinity increases to the right and up

8.2. ionization energy increases to the right and up

8.3. atomic radius decreases up and right

9. Schrodinger's Cat

9.1. observation or measurement itself affects an outcome, so that the outcome as such does not exist unless the measurement is made.

10. Transmutation

10.1. the change of one chemical element into another

11. Valence e-

11.1. outermost electrons of an atom