Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
Atom |
Smallest Identifiable unit of an element |
|
|
electron |
Fundamental particle with a negative charge. Mass = 0.00055 AMU |
|
|
Nucleus |
Houses most of an atoms mass, and 100% of its positive charge |
|
|
Protons |
Positively chatged, mass = 1.0073 amu |
|
|
Neutron |
Neutral charge. Mass = 1.0087 AMU |
|
|
Group |
Vertical Column on the Periodic Table |
|
|
Period |
Horizontal row on the periodic table |
|
|
Atomic Number |
Defined by the number of protons in an atoms nucleus |
|
|
Chemical Symbol |
One or two letter abreviation for the element on the periodic table. |
|
|
Metals |
Occupy the left side of the period table. Have similar properities - Conductors -Malleable -Ductile |
|
|
Non-Metals |
Occupy the right side of the periodic table. More variable in their properties |
|
|
Metalloids |
Occupy the space between Metals and non-metals on the periodic table (The zig Zag). Mixed properites of non-metals and metals. Most are semiconductors |
|
|
Main Group Elements |
Predictable properties based on their locations on the periodic table. |
|
|
Transition metals |
Properties are less predictable based on locations |
|
|
Group 1A |
Alkali Metals |
|
|
Group 2A |
Alakaline Earth Metals |
|
|
Group 7A |
Halogens |
|
|
Group 8A |
Noble-Gases |
|
|
Ions |
Atoms that lost or gained an electron |
|
|
Ion Charge |
# of protons - # of electrons |
|
|
Cation |
Positively charged Ion |
|
|
Anion |
Negatively charged Ion |
|
|
Isotopes |
Atoms with the same number of protons but different # of nuetrons |
|
|
Percent Natural Abundance |
Ratio of Isotopes in a naturally occuring sample of an element. |
|
|
Mass Number (A) |
Sum of Neutrons and Protons in an Atom |
|
|
Atomic Mass |
= to the average mass of the naturally occuring ratios of isotopes |
|
|
Radioactive Particles and their properties |
Alpha - Stopped by paper, Skin Beta - Passes serveral mm through skin Gamma - passes through body, several feet of concrete |
|
|
Radioactive Isotopes |
Decay and release radioactive particles. (Nuclear Radiation) |
