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;
24 Cards in this Set
- Front
- Back
|
What is matter and the three states |
Anything that takes up space and has mass. Solid Liquid and Gas |
|
|
6 most abundant elements in living organisms....4 in humans |
Carbon Hydrogen Nitrogen Oxygen Phosphorus Sulfur Humans: oxygen carbon hydrogen and nitrogen |
|
|
3 parts of atom with charge mass and location |
Proton(positive 1atu Nucleus) Neutron(neutral 1amu Nucleus) Electrons(negative 0amu Energy levels)
|
|
|
How to find proton |
Atomic # |
|
|
How to find neutron |
Mass - atomic # |
|
|
How to find electrons |
Same as protons |
|
|
How ions and isotopes are different |
Isotopes: different mass #(Neutron different) Ions:different electrons |
|
|
Know how radioactive isotopes emit radiation and know uses for low and high levels of radiation |
Electron is released and neutron becomes a proton Low:PET scans High:killing cancer cells |
|
|
Know how electrons are arranged in electron configuration |
First Level holds 2 Second holds 8 Fourth holds 32 Orbitals:S(2electrons)P(6electrons)D(10)F(14) Outside level can only have 8 |
|
|
Know what the octet rule means for atoms |
elements will gain,share,or donate electrons with other elements to fill outer levels. |
|
|
Know what type of elements form ionic bonds and how these bonds are formed. |
Ionic= metal+nonmetals (metals lose e-) Cation+ anion- |
|
|
Know what type of elements form covalent bonds and what interactions are occurring. |
only nonmetals, share electrons |
|
|
Know the difference between polar and non-polar covalent bonds. |
Polar (electrons shared unevenly) Nonpolar (electrons shared evenly) |
|
|
Know what electronegativity and how it affects polarity. |
atoms ability to take electrons away |
|
|
Know what hydrogen bonds and Vander Waal interactions are. |
Hydrogen: oxygen and hydrogen on different waters results in a hydrogen bond Vander Waal: weak interactions or attractions between atoms |
|
|
Be able to list the types of bonds in order from strongest to weakest or visa versa. |
Covalent, Ionic, Hydrogen, Vander Waal |
|
|
Know about water’s polarity and shape and how it affects dissolution of different substances. |
Covalently bonded,bent shape, like dissolves like( water is polar so it dissolves polar) water dissolves most ionic things |
|
|
Know why water is less dense as a solid than it is as a liquid |
the hydrogen bonds expand |
|
|
Know what it means for water to have a high heat capacity |
water can hold a lot of energy |
|
|
Know what it means for water to have a high heat of vaporization |
it takes a lot of energy to turn water into a gas |
|
|
Know what it means that water is cohesive and adhesive |
Cohesive: water sticks together Adhesives: water sticks to other waters |
|
|
What does water having a high surface tension mean |
surface is going to be hard to break through because water molecules are close |
|
|
Know what makes a compound an acid or a base and why water is considered neutral. |
Hydrogen at front of elements Acid(H) bases (OH) |
|
|
Know the purpose of a buffer |
to maintain homeostasis (keeps pH normal) |
