Help
Options
Term
element
click to flip
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't know
Term
atom
Remaining cards (18)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
ES Atoms & the PT
Terms associated with basic atomic structure and the Periodic Table.
| Term | Definition |
|---|---|
| element | made of only one kind of atom |
| atom | smallest part of an element that keeps its properties |
| symbol | abbreviation for an element (1-2 letters) |
| proton | positively charged subatomic particle in atom's nucleus |
| neutron | neutral subatomic particle in atom's nucleus |
| electron | negatively charged particle orbiting atom's nucleus |
| nucleus | small, dense, positively charged center of an atom |
| energy level | path in which electron moves around nucleus |
| 2 | capacity of 1st energy level |
| 8 | capacity of 2nd energy level |
| 18 | maximum capacity of 3rd energy level |
| valence | describes electrons in the outermost level in atom |
| atomic number | tells the # of protons in an atom |
| neutral | overall charge of an atom since the # of protons and electrons are equal |
| group/family | vertical column on periodic table; can be used to tell the # of outer (valence) electrons in an atom |
| period/series | horizontal row on periodic table; tells the # of occupied electron energy levels |
| Bohr model | shows how electrons are arranged in levels around nucleus |
| helium (He) | only element in the 'tall' groups whose group # does not tell the # of valence electrons |
| amu (atomic mass unit) | unit of mass used for subatomic particles/atoms since the kilogram is too large |
Created by:
goakley
Popular Earth Science sets