Ch. 3 Compounds (test 2)

Question 1

Define: Ions

Answer 1

When an atom or group of atoms gains or loses electrons.

Question 2

Ions have an ______ number of protons and electrons.

Answer 2

Unequal

Question 3

Metals _____ electrons to produce positively charged ions called ______.

Answer 3

Lose Cation

Question 4

Nonmetals _____ electrons to produce negatively-charged ions called _____.

Answer 4

Gain Anions

Question 5

How can the electron dot structure of a representative element atom be used to predict the charge of a monoatomic ion.

Answer 5

The electron dot structure will show the number of VE’s and its charge will be how many electrons it needs to gain or lose to become an octet.

Question 6

Ca 2+ has 20 protons and _____ electrons.

Answer 6

18 electrons

Question 7

Ca has 20 protons and ______ electrons.

Answer 7

20 electrons

Question 8

O 2- has 8 protons and _____ electrons.

Answer 8

10 electrons

Question 9

O has 8 protons and _____ electrons.

Answer 9

8 electrons

Question 10

Fe has 26 protons and ____ electrons.

Answer 10

26 electrons

Question 11

Fe 2+ has 26 protons and _____ electrons.

Answer 11

24 electrons

Question 12

FE 3+ has 26 protons and _____ electrons.

Answer 12

23 electrons

Question 13

When naming _____ that form two or more ions, a roman numeral is used to indicate the charge.

Answer 13

Metals

Question 14

-Ous =

Answer 14

Lower charge

Question 15

-Ic =

Answer 15

Higher charge

Question 16

Define: Octet Rule

Answer 16

Atoms gain, lose, or share valence electrons in order to end up with 8 VE’s.

Question 17

Define: Compound

Answer 17

Contains two or more elements.

Question 18

Define: Ionic Compound

Answer 18

When a cation(+) and an anion(-) interact.

Question 19

Ionic compounds are always _______.

Answer 19

Neutral

Question 20

Cations and anions are held together by an _____.

Answer 20

Ionic bond. (metal + nonmetal)

Question 21

What is an Ionic bond and how to you name Ionic bonds?

Answer 21

Metal + nonmetal Metal 1st, nonmetal ends with -ide

Question 22

What is a covalent bond?

Answer 22

VE’s are shared between two atoms.

Question 23

Define: Molecules

Answer 23

Uncharged groups of atoms connected to one another by covalent bonds.

Question 24

Single Bonds =

Answer 24

1 pair of e’s is shared by 2 atoms.

Question 25

Double Bonds =

Answer 25

2 pairs of e’s shared by 2 atoms.

Question 26

Tripple Bonds =

Answer 26

3 pairs of e’s shared by 2 atoms.

Question 27

Naming Binary Molecules: Mono = _____

Answer 27

1

Question 28

Naming Binary Molecules: Di = _____

Answer 28

2

Question 29

Naming Binary Molecules: Tri = _____

Answer 29

3

Question 30

Naming Binary Molecules: Tetra = _____

Answer 30

4

Question 31

Naming Binary Molecules: Penta = _____

Answer 31

5

Question 32

Naming Binary Molecules: Hexa = _____

Answer 32

6

Question 33

Binary Molecules contain just ____ different elements.

Answer 33

2