Ch 2: Chemistry Of Life Flashcards
Atom
The smallest particle of matter
Element
Basic info of a single atom in an element
Molecule
Smallest individual unit of compounds with out property loss
Compounds
Two or more different elements that are chemically combined in set proportion
Subatomic particles
Nucleus with protons and neutrons
Ions
Atoms with positive or negative charge
PH
Concentration of hydrogen ranging from 1-7 acidic, 7-14 basic
Definition of radioactivity
Unstable energy emitted by isotopes
What is the 4 data points made by periodic table?
-atomic number
-Name
-Atomic symbol
-Atomic weight
What are the subatomic properties the results based on the changes of quantities of some atomic particles?
-Nucleus= protons + neutrons
-Cloud: electrons with a negative charge
-Quantities: neutral atoms
Difference between intermolecular bonds and intra-molecular bonds
-intramolecular: within a molecule, such as ionic and covalent bonds
-Intermolecular: amongst molecules like hydrogen bonds 
Key elements for life in electronic bonding properties
-matter: mass+ volume
-Energy: work
Five properties of life
-metabolism
-Growth
-Response
-Control
-Structural similarities
Forms of energy
-Kinetic: energy of motion
-Potential: stored energy due to its position
-Chemical: chemical reaction
Macromolecules
-carbohydrates: energy storage
-Lipids: insulation, cushion, energy storage
-Polypeptides and proteins: structure, support, motility, and antibodies
-nucleic acids: genetic info, DNA and RNA
