Subtest 2 Flashcards
Atomic Structure
of protons
Atomic Mass
of protons + neutrons
atomic weight
average of isotopes
fusion
when small nucleus combines. Sun uses.
fission
large nucleus splits into smaller. Atomic power.
Atomic radius
decreases L to R and top to bottom
ionization energy
energy required to completely remove an electron from atom or electron
electron affinity
energy release when an electron is added to a gaseous atom
electronegativity
measure of attraction atom has for electrons in a chemical bond
Alkali metals
Group 1A, 1 valance electron, largest atomic radii, low ionization, low electronegativity, react readily with nonmetals
Alkaline earth metals
2 valence electrons, low electronegativity, low electron affliaction
halogens
group VIIA, high electronegativity
transition elements
between alkaline and halo/noble, high melting point
ionic bonds
electron from an atom with lower ionization energy are transferred to an atom with greater electron affinity - electrostatic forces
covalent bonds
electron pair shared between atoms
polar covalent
bond partially covalent and partially ionic
acid
donates protons
base
accepts protons
hydrocarbons
compounds H and C, alkanes, alkenes, alkynes, aromatics
alkanes
hydrocarbon, single bonds, ane
alkenes
hydrocarbon, double bonds, ene
alkynes
hydrocarbon, triple bonds - yne