Molecular Interactions Flashcards
Elements
Building blocks of all matter including the human body, simplest kinds of matter,
Essential Elements
Elements that are necessary for life
Trace Elements
Elements that are found in low concentrations, essential to cell function. Especially apparent when they are absent
Electrons
Negative charge
protons
Positive charge
Neutrons
Neutral
Atomic Number
Number of protons and number of electrons
Atomic Mass
Adding the weight of protons and neutrons together
When an atom gains or loses electrons it becomes..
An ion of the same element
when an atom gains or lose protons it becomes..
A different element
when an atom gains or loses neutrons it becomes…
An isotope of the same element
Covalent Bonds
Strong bonds that result when two atoms share a pair of electrons, one from each atom.
Polar Molecules
Molecules formed by covalent bonding between atoms where the shared electrons are distributed UNEVENLY. Generally dissolve easily in water (hydrophilic) .
Non-Polar Molecules
Molecules formed by covalent bonding, shared electrons that are distributed EVENLY. Generally do not dissolve easily in water (hydrophobic)
Solute
Solid part of any solution, any substance that collectively dissolves in liquids is called a solute.
