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Terms : Hide Images
| 882119245 | Matter | anything that takes up space + has mass | 1 | |
| 882119246 | Element | Substances that cannot be broken down to substances by chemical reactions | 2 | |
| 882119247 | Compound | Substance consisting of 2 or MORE elements combines in a fixed ratio | 3 | |
| 882119248 | What are the 4 elements that make up 96% of all living matter? | Nitrogen, Carbon, Oxygen, Hydrogen | 4 | |
| 882119249 | Essential Element | Chemical element required for plant growth and to complete its life cycle | 5 | |
| 882119250 | Trace Element | Required by an organism in only minute quantities (ex. IRON / COPPER) | 6 | |
| 882119251 | Neutron | Subatomic particle w/ no electrical charge | 7 | |
| 882119252 | Proton | Subatomic particle w/ single positive charge | 8 | |
| 882119253 | Electron | Subatomic particle w/ negative charge | 9 | |
| 882119254 | Atomic Number | # of protons (written as subscript left of symbol) | 10 | |
| 882119255 | Atomic Mass | Total mass of an atom | 11 | |
| 882119256 | Isotope | One of several atomic forms of an element, each w/ same # of protons but different # neutrons (=different atomic mass) | 12 | |
| 882119257 | Electron Shells | An average level of electrons at a characteristic average distance from the nucleus of an atom | 13 | |
| 882119258 | HOW TO FIND NEUTRONS???????? | ATOMIC # - ATOMIC MASS | 14 | |
| 882119259 | Which is the only subatomic particle that is directly involved in the chemical reactions between atoms? | Electrons | 15 | |
| 882119260 | What is Potential Energy? | Energy that mater possesses because of its location/structure | 16 | |
| 882119261 | Explain potential energy: boy at the top of a slide | Because of altitude = elevated against gravity (stored PE) | 17 | |
| 882119262 | Explain potential energy: Electron in the 3rd energy shell | Because the more distant an electron is from the nucleus = the greater its PE | 18 | |
| 882119263 | Explain potential energy: Glucose | Full of energy, a lot more bonds than water | 19 | |
| 882119264 | What determines the chemical behavior of an atom? | # of electrons in its outermost shell | 20 | |
| 882119265 | Valence Electrons | Outermost electrons | 21 | |
| 882119266 | Valence Shell | Outermost electron shell | 22 | |
| 882119267 | Molecule | 2 or more atoms held together by a covalent bond | 23 | |
| 882119268 | Covalent Bond | Sharing of a pair of valence electrons | 24 | |
| 882119269 | Electronegativity | Attraction of a particular kind of atom for the electrons of a covalent bond | 25 | |
| 882119270 | Polar Covalent Bond | Covalent bond between atoms that differ in electronegativity (one neg and one pos) | 26 | |
| 882119271 | Non-Polar Covalent Bond | Covalent bond between 2 atoms that share 1 or more pairs of valence electrons (shared equally) | 27 | |
| 882119272 | Ionic Bond | Attraction between oppositely charged atoms or ions | 28 | |
| 882119273 | Anion | NEG Charge | 29 | |
| 882119274 | Cation | POS Charge | 30 | |
| 882119275 | What is a Hydrogen bond? | Type of weak chemical bond | 31 | |
| 882119276 | When does a Hydrogen Bond form? | When Hydrogen atom covalently bonded to one electronegative atom is also attracted to another electronegative atom (usually oxygen/nitrogen) | 32 | |
| 882119277 | Van der Waals interactions | Weak interactions between molecules/parts of molecules that result from localized charge fluctuations (occur when atoms and molecules are very close together) | 33 | |
| 882119278 | STRONGEST BOND TO WEAKEST | Covalent, Ionic, Hydrogen, vaan der Waals | 34 | |
| 882119279 | Why molecular shape is crucial in biology | It determines how biological molecules recognize and respond to one another w/ specificity (one of bio's unifying themes) | 35 | |
| 882119280 | Dynamic Equilibrium | Reactions are still going on (DOES NOT mean reactants and products are equal in concentration) | 36 | |
| 882119281 | PHOTOSYNTHESIS EQUATION | 6CO2 + 6H20 ----> C6 H12 O6 + 6O2 | 37 |
