Structure and Properties of Ionic and Covalent ch3

Question 1

ionic compound consist of
cation with an anion true or false?

Answer 1

true

Question 2

attraction of opposite charge and has electrostaticforce strong and hold ions togather like ion pair

Answer 2

ionic bond

Question 3

The _____________________of the superscripts are
placed as _________________________ for the subscripts.

sab sick ribt

subscripts

Answer 3

numerical value.
is a real number regardless of its sign

noo mair ik ill

numer ical

Question 4

in ionic compound we want __________

Answer 4

the smallest whole number

Question 5

Notice that there is one positive polyatomic cation
called the ________

Answer 5

ammonium ion

Question 6

covalent compound

kohv a lint

covalent

Question 7

3A elements have a total of ________valence electrons, most of these elements form _____ cations and this law goes for all

Answer 7

1-3
2-3

Question 8

two or more atoms form a chemical bond and the atoms are held togather in characterstic by attractive force

Answer 8

the chemical bond

Question 9

Ionic versus covalent

Answer 9

ionic transfer
covalent share

Question 10

metal tend to form__________becuase they have low _________and nonmetal tend to form _______becuase they have high _________

Answer 10

1-cation
2-low ioniziation
3-anion
4-high ioniziation

Question 11

ionic example :

Answer 11

crystal lattice

ik ris till / la tis

cry stal latt ice

Question 12

Element whose atoms strongly attract electron are _______

Answer 12

electronegative element

Question 13

High electronegative=

Answer 13

bility to attract electron

Question 14

melting point

Answer 14

the temperature at which a solid is converted to liquid

Question 15

boiling point

Answer 15

temperature at which a liquid converted to gas

Question 16

ionic bond has melting point and boiling _________than covalent and has regular structure ,
covalent has no regular structure or _________
ionic is more ________than covalent

Answer 16

1-greater
2-amorphous
3-soluble

aa more phis

amor ph ous

Question 17

ionic compound dissolved in water called __________and solution would be _____________

Answer 17

1-Electrolytes
2-electrolyic solution

Question 18

put elements in order in which the staplest element :

Answer 18

O more stable
H
N=nonreactive

Question 19

why is nitrogen nonreactive ?

Answer 19

because nitrogen makes up about 80% of atmosphere and oxygen just 20%

at moo s phear

tmo sphere

Question 20

put bond in order in which the staplest element and most energy :

Answer 20

triple bond=stable , more energy
douple
single

Question 21

solubility

Answer 21

the maximum amount of solute that dissolve in given amount of solvent at specific temperature

Question 22

example on solubility :

Answer 22

ammonia and water=both polar
oli and water=non polar