Ch. 6.1

Question 1

why do atoms bond

Answer 1

to become stable

Question 2

what are the two types of bonding?

Answer 2

ionic and covalent bonding

Question 3

what are the two types of covalent bonding?

Answer 3

polar and nonpolar

Question 4

ionic bonding

Answer 4

• comes from the word ion
• the transfer/stealing of electrons
• gives/takes them
• ends up with ions

Question 5

covalent bonding

Answer 5

• sharing of electrons
• “co” meaning together + same

Question 6

ionic bonding has the attraction of what?

Answer 6

oppositely charged ions

Question 7

covalent bonding has the attraction of what?

Answer 7

nucleus to another atom’s electrons

Question 8

electronegativity

Answer 8

atom’s relative ability to attract/pull on electrons while bonding

Question 9

what is electronegativity measured on a scale of?

Answer 9

0 - 4 (no units)

Question 10

periodic trends for EN

Answer 10

• increases across periods
  *more nuclear charge
  *smaller radius

Question 11

family/group trends for EN

Answer 11

• decreases down families/groups
  *larger radius
  *shielding effect(weaker pull)

Question 12

can any element has an EN of 4?

Answer 12

NO ELEMENT CAN

Question 13

How can you tell if it an ionic bond with EN?

Answer 13

If the difference between the two elements EN is greater than 1.7

Question 14

How can you tell if it is a polar covalent bond?

Answer 14

If the difference between the two elements EN is between greater than 0.3 - less than 1.7

Question 15

How can you tell if it is a non polar covalent bond?

Answer 15

If the difference between the two elements EN is between 0.0 - 0.3

Question 16

what likes to make ionic bonds?

Answer 16

a metal with a nonmetal

Question 17

what likes to make a covalent bond?

Answer 17

a nonmetal with a nonmetal

Question 18

what doesn’t bond?

Answer 18

METAL + METAL

Question 19

metals in ionic bonds

Answer 19

• loses electrons
• benefits from ionic bond
• weaker one(EN)

Question 20

nonmetals in ionic bonds

Answer 20

• gains electrons
• loses from ionic bond
• stronger one(EN)

Question 21

nonmetals in covalent bonds

Answer 21

• looking for extra electrons
• wants to share electrons

Question 22

nonpolar covalent bond

Answer 22

• electrons shared equally
• equal distribution of charge

Question 23

polar covalent bond

Answer 23

• electrons shared unequally
• unequal distribution of charge

Question 24

if an element loses electrons, what charge does it have?

Answer 24

positive charge

Question 25

if an element gains electrons, what charge does it have?

Answer 25

negative charge