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
Chapter 17
| Term | Definition |
|---|---|
| Atom | the smallest particle of an element that still retains the properties of the element. |
| Nucleus | positively charged center of an atom that contains protons and neutrons and is surrounded by a cloud of electrons |
| Proton | Particle, composed of quarks, inside the nucleus of an atom that has a charge of 1+ |
| Neutron | neutral particle, composed of quarks, inside the nucleus of an atom |
| Electron | particles surrounding the center of an atom that have a charge of 1- |
| Quark | particles of matter that make up protons and neutrons |
| Electron cloud | area around the nucleus of an atom where the atom's electrons are most likely to be found |
| Atomic number | number of protons in an atom's nucleus |
| Mass number | sum of the number of protons and neutrons in an atoms nucleus. |
| Isotope | atoms of the same element that have different numbers of neutrons. |
| Average atomic mass | weighted-average mass of the mixture of an element's isotopes |
| Periodic table | organized list of all known elements that are arranged by increasing atomic number and by changes in chemical and physical properties. |
| Group | vertical column in the periodic table |
| Electron dot diagram | uses the symbol for an element and dots representing the number of electrons in the element's outer energy level |
| Period | horizontal row in the periodic table. the amount of time it takes one wavelength to pass a fixed point; is expressed in seconds |
Created by:
isaacarenas27
Popular Physical Science sets