Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
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
chaptertwo
chapter two vocabulary
| Question | Answer |
|---|---|
| atom | smallest unit of an element, 3 subatomic particles |
| proton | positive (+) charge, subatomic particle |
| electron | negative (-) charge, subatomic particle |
| neutron | no charge, subatomic particle |
| nucleus | center of an atom |
| inside a atom | protons and electron(+)charge |
| outside an atom | elements float around |
| element | substance that cannot be broken down, most naturally occur (92 out of 112), elements are building blocks of minerals |
| atomic number | tells number of protons and electrons |
| atomic mass | tells how heavy the atom is |
| to find a neutron | atomic mass-atomic number |
| electron dot diagram | electrons located at energy levels, 1st energy level-2 elec.2nd energy level-8 elec.3rd energy level-18 elec. (only for atomic numbers 11+) |
| group | vertical columns |
| periods | horozontal rows |
| 3 states of matter | 3 states of matter |
| solid | definate shape and volume |
| liquid | no definate shape, definate volume |
| gas | no definate shape or volume |
| chemical formula | 1. element2. # of molecules3. # of atoms |
Created by:
maryquinnl2013
Popular Science sets