1Makes up 96% of all living matter
Carbon, Hydrogen, Oxygen, Nitrogen
2Polar covalent
Unequal sharing
3Ionic bond electrons?
Transfers electrons
4How do electrons change positions?
By absorbing and releasing energy
5Covalent bond electrons?
Sharing electrons
6What is the outermost shell?
The largest/farthest shell is the valence shell.
7What is mass number?
Protons + Neutrons
8Trace Elements definition
Element required by an organism in miniscule quality.
9What constitutes the potential energy of an electron?
The distance from the nucleus
10What shell has the lowest potential energy?
First shell, closest to nucleus.
11What makes Isotopes different?
An increased number of neutrons
12Electrons is equal to what?
Number of Protons
13How many elements are necessary to us?
25 out of 92
14How to calculate Neutrons?
Mass number minus Atomic number.
15Outer shell electrons =
Higher potential energy
16Nonpolar covalent
Equal sharing of electrons
17Valence electrons
Electrons located in the valence shell/farthest shell from the nucleus.
18Why do polar bonds happen?
Unequal electronegativity/sharing
19Results from polar bonds
Partial charges
20What happens to some atom's electrons in ionic bonds?
They get stripped away due to one atom being more electronegative.
21Cation
Has a net positive charge, lost an electron
23Anion
Has a net negative charge, gained an electron
25Dissolving agent
Solvent
26What molecule is ALWAYS soluble in water?
Polar molecules
27What compound is the "Solvent of Life"?
Water
28A liquid that is a completely homogenous mixture of 2 or more substances is called a...?
Solution
29Oils are hydrophobic. Why?
Nonpolar covalent bonds
30Substance Dissolved
Solute