Vocabulary #5 Flashcards
Atoms combined chemically with one another to form bonds
Bonds
Arranges the elements by increasing atomic number
Periodic table
Formed when one atom gains electrons while the other atom loses electrons from its outer most level or orbit
Ionic bonds
Charged atom
Ions
Sodium chloride, potassium, calcium, and phosphate
Mineral salts
Atoms share electrons to fill their outermost levels
Covalent bond
This kind of ion dissociates in water
Ionic bond
Four of the most important elements found in cells form covalent bonds
C,O,H,N
Elements or molecules furnishing electrons during a reaction
Electron donors
Special molecules will gain electrons only to lose them to another in a very short time
Electron carries
Medium allowing reactions to occur
Solvent
Formed when two oxygen atoms are covalently bonded together
Molecular oxygen
Necessary for muscle contraction and nervous transmission building strong bones
Calcium
Necessary to produce the high-energy molecule ATP
Phosphate
Necessary for nervous transmission
Chloride