Ionic bonding

(1.21) what is a cation

a positively charged ion

(1.21) what is a anion

a negatively charged ion

(1.21) how do you form a cation

atom/s loses one or more electrons

(1.21) how do you form an anion

atom/s gains one or more electrons

(1.24) what charge does group one atoms have

+1

(1.24) group 1 atoms __________ to form ions with _____ positive charge

lose 1 electron 1+

(1.24) group 2 atoms _________ to form ions with _____ positive charges

lose 2 electrons , 2+

(1.24) group 1 and 2 elements are cations/anions

cations

(1.24) group 7 atoms ________ to form ions with ________ charge

gain one electrons , 1-

(1.24) group 6 atoms _______ to form ions with _______ charge

gain 2 electrons, -2

(1.24) group 7 and group 6 ions are anions/cations

anions

(1.22) what is an ion

an atom or group of atoms with a positive or negative charge

(1.25) why would a ionic compound end in ide

• negatively charged

• without oxygen

• non-metals

(1.25) why would a ionic compound end in ate

• negatively charged ions in compounds

• with oxygen

• 3 or more elements

what Is an ionic compound

substance formed when a metal and a non metal transfer electrons forming positive and negative ions

(1.27) what is the ionic bonding in ionic compounds

strong electrostatic forces of attraction between oppositely charged ions

(1.27) what is the strict of an ionic compound

attic structure

(1.27) the ions In an ionic compound form a lattice structure which has:

• regular arrangement of ions

• ionic bonds between positively charged ions

(1.27)I ionic compounds have _____ melting points

high

(1.27) ionic compounds have _____ boiling points

high

(1.27) what state are ionic compounds in room temp

solid

(1.27) why do ionic compounds have a high melting and boiling point

• too many strong ionic bonds

• large amounts of energy need to be transferred (to the lattice structure) to break the bonds

(1.27) state why ionic compounds in a solid state cannot conduct electricity

the ions are not free to move around

(1.27) explain why ionic compounds do conduct electricity when molten or in aqueous solution

• the ions are free to move around

• they can carry electric charge (from place to place)