ionic and covelant bonding

Question 1

how do metal atoms gain a full outer shell

Answer 1

lose all of their outer shell electrons
they become positively charged and stable

Question 2

what is oxidation

Answer 2

loss of electrons

Question 3

how do non metal atoms gain a full outer shell

Answer 3

gain electrons to fill outer shell
become negatively charged and stable

Question 4

ionic compounds

Answer 4

when metals and non metals react, metal atoms give electrons to non metal atoms

Question 5

ionic structure

Answer 5

the ions are arranged in a giant ionic lattice when in an ionic compound

Question 6

ionic bonding

Answer 6

the electrostatic attraction between a oppositely charged ions
-very strong attraction

Question 7

ionic properties- melting point

Answer 7

high melting point-
ionic bonds are very strong
giant ionic lattice contains many ionic bonds
breaking all bonds require large amounts of energy

Question 8

ionic bonds have elecrical conductivity when..

Answer 8

requires charged particles that can move freely

when compounds are solid- ions cannot move freely
no conductivity

when ionic compounds are liquid of gas
ions can move freely
high conductivity

Question 9

covelant bonding

Answer 9

-the electrostatic attraction between protons in two nuclei and a shared pair of electrons between them
very strong attraction

Question 10

simple molecule

Answer 10

a small group of atoms held together by covelant bonds

Question 11

why do simple molecules have a low boiling point

Answer 11

weak inter molecular forces between the molecules
when simple molecular substances boil- weak imfs break

Question 12

why is there no electrical conductivity in a simple molecule

Answer 12

charged particles that can move freely.
there are arn’t any charged particles in a simple molecular substances as molecules are neutral

Question 13

C60 fullerene

Answer 13

simple molecule composed of sixty carbon atoms in a ball
soft and slippery as molecules can roll over eachother
electrical insulator