When Atoms Get Together

Question 1

What is a molecule?

Answer 1

When 2 or more atoms, of the same or different atoms combine.

Question 2

What are elements?

Answer 2

Atoms in their purest forms, on the periodic table

Question 3

Describe compounds?

Answer 3

They are made up of atoms held together by chemical bonds

Question 4

Which families are a perfect match for each other when bonding?

Answer 4

Alkine metals, halogens

Alkaline earth metals, oxygen family

Question 5

What are atoms always trying to do? Why do they bond?

Answer 5

They want to fill their outermost electron shell (valence electron shell) either by loosing or gaining electrons (2, 8, 8, 2)

Question 6

Do metals or non metals loose electrons in ionic bonds?

Answer 6

Metals loose electrons and become positive

Non metals gain electrons and become negative

Question 7

What is the octet rule?

Answer 7

They want to fill their outermost electron shell either by loosing or gaining electrons (get 8 ve)

Question 8

Who follows the duet rule?

Answer 8

H and He, their outermost shell can only have 2 electrons

Question 9

Which families are most likely to loose 1 or 2 ve to give to another? Do they become positively or negatively charged?

Answer 9

Alkaline metals, alkaline earth metals

Positive

Question 10

Which family is ost likely to gain 1 or 2 ve to be satisfied? Do they become positively or negatively charged?

Answer 10

Halogens, oxygen family

Negative

Question 11

Ionic bonds are formed by what kinds of atoms?

Answer 11

metals and nonmetals

polyatomics and anything

Question 12

What breaks up an ionic bond?

Answer 12

water

Question 13

Atoms will loose or gain electrons based on what? Why?

Answer 13

Which is easier

Since they form oppositely charged ions by the gain or loss of electrons they chemically attract each other

Question 14

What does opposites attract mean in the case of ionic bonds?

Answer 14

Metals and non metals are attracted to each other

Question 15

Ionic bonds are the result of what?

Answer 15

Electrostatic charges attracting each other as electrons are “swapped”
(basically opposites attract)

Question 16

What happens to ionic bonds when they come in contact with water?

Answer 16

The bonds dissociate in water and thus make for excellent electrolytes (conducts electricity)

Question 17

How are ionic bonds shown using the Lewis structure

Answer 17

An arrow from the ve to the open space

Question 18

What are polyatomic ions?

Answer 18

2 or more chemically bonded atoms that have become electrically charged as a unit by losing or gaining 1 or more electrons

Question 19

Polyatomics bonding with metals and non metals form what kind of bonds?

Answer 19

Ionic bonds

Question 20

Describe covalent bonds

Answer 20

Atoms get their octet needs satisfied by sharing some of their valence electrons NOT giving them up

Question 21

When are covalent bonds desirable?

Answer 21

When atoms are looking for a similar thing and complete each other

Question 22

Are covalent bonds easy to break?

Answer 22

NO, they share to complete each other

Question 23

Covalent bonds are formed between what?

Answer 23

non metals and non metals

Question 24

How do you draw covalent bonds using lewis structures?

Answer 24

“Hugs” between the ve which are being shared