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THE CHEMICAL CONTEXT OF LIFE - Coggle Diagram
THE CHEMICAL CONTEXT OF LIFE
ELEMENTS
cannot be broken down chemically
Hydrogen
Oxygen
Carbon
Nitrogen
MOLECULES
consists of 2 or more covalent bonds
Electromagnetivity
attraction of an atom for the electrons of a covalent bond
CHEMICAL BONDS
when atom interacts with valence shell
Ionic bond
forms between metal and non-metal
cation
anion
hydrogen bonds
attraction between H+ and electronegative atoms
Covalent bond
pairs of electrons are shared
non-polar covalent
polar covalent
Van der waals interactions
between transiently positive and negative regions of molecules
CHEMICAL REACTION
changes reactants into products while conserving matter
Chemical equilibrium
COMPOUND
two or more different elements in a fixed ratio
ATOMS
Mass number
sum of protons and neutrons
Isotopes
same element with different number of neutrons
Atomic number
number of protons
Electrons
electron shells
contains characteristic energy level
valence electrons
outermost shell determines the chemical behavior
Subatomic particles
Neutron
Electron
Proton