+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
|
What element is most often in the universe? Human and earth's crust?
|
HydrogenOxygen
|
|
What creates the amu? (atomic mass number)
|
Combined number of protons and neutrons
|
|
Electrons have what type of charge? What does it cancel out with?
|
Negative, protons
|
|
What is an isotope?
|
An atom with protons and neutrons that do not equal eachother, so they are unstable.
|
|
How is an isotope written?
|
Carbon-10, Hydrogen-3 etc.
|
|
Name how many electrons in each energy level
|
1st= 22nd= 83rd= 184th= 325th= 506th= 72
|
|
What is an ion?
|
Atoms that have lost or gained electrons
|
