CHEMISTRY SHENANIGANS

-each element gives of a specific colour of light
-these are known as emission spectra, unique to each element
-If electrons absorb energy they can bumped to a higer level
-when the fall to a lower level, they release energy as light

Atomic Structure:
-atoms are made up parts called subatomic particles:
1)protons- positive, mass 1, located in nucleus
2)neutrons- neutral, mass 1, located in nucleus
3)electrons- negative, mass 1/1837, located outside



Atomic Number:
-atomic number is the number of protons



Isotopes:
-the number of protons dertermine they type of element
-changing number of neutrons chages isotopes of the element
-all isotopes have the same chemical properites


Mass Number:
-mass number is the total number of protons and neutrons
-give symbol A
-different isotopes have different masses
-mass number = atomic number + number of neutrons
-A = Z+N