19 Ionic Bonding Flashcards
electrons found in valence shell, in highest “s” and “p” orbitals
valence electrons
same as group number of elements from IA -> VIIIA
valence electrons
determines phys and chem properties
valence electrons
participate in the bonding process
valence electrons
can either be shared/transferred to form attractive force and chemical bond
valence electrons
also known as LEDS
lewis electron dot symbol
who was LDS named after?
gilbert n. lewis
pictorial representation of arrangement of valence electrons
lewis electron dot symbol
rep. nucleus and inner shell electrons in center
element’s symbol
rep. electrons in highest “s” and “p” orbitals
dots
max of ___ dots can be drawn on each side following orbital notation
2
stable in terms of chemical reactivity, hence unreactive
noble gases
have a fully-filled valence shell containing 8 electrons, satisfying the octet rule
noble gases
elements tend to react to achieve noble gas electron config, either by losing/gaining electrons/sharing electrons with other atoms
octet rule
the goal is to attain stability with a full valence shell
octet rule
elements involved in ionic bonding?
metals and non-metals
middle and left-hand side of the periodical table
metals
right-hand side of the periodic table
non-metals
formed when metals and non-metals react
ionic bond
oppositely-charged ions are very strongly attracted to each other
electrostatic attraction
metal atoms lose electrons to form positively-charged ions with a full valence shell
forming cations
non-metal atoms gain electrons to form a negatively-charged ions with a full valence shell
forming anions
number of electrons lost is the same as the group number, positive
groups 1,2,3
number of electrons gained is group number minus 8, negative
groups 6,7
regular repeating structure of ions; “ionic lattice”
ionic compound
composed of repeating patterns of oppositely-charged ions held together by strong electrostatic attraction
ionic lattice
can ionic compounds conduct electricity when they are melted/dissolved in water to form aqueous solution?
yes
are ionic compounds free to move from place to place
yes
do ionic compounds conduct electricity when solid as their ions are in fixed pos?
yes
do they have strong electrostatic attraction?
yes
are melting and boiling pts. high in ionic bonds?
yes
rules in crisscross method
- all subscripts must be reduced to their lowest terms
- subscripts of one are not included
- subscripts of polyatomic ions must be retained
- cation always comes first when writing chemical formula
