Exam 1.2

Question 1

Nucleus of atom

Answer 1

+
Contains most of atoms mass

Question 2

Electrons of atom

Answer 2

-
Very light
Exist in region around nuclues

Question 3

Proton

Answer 3

Mass: 1.673 x 10^-27
Relative mass: 1
Relative charge: +1

Question 4

Neutron

Answer 4

Actual mass: 1.675 x 10^-27
Relative mass: 1
Relative charge : 0

Question 5

Electron

Answer 5

Actual mass: 9.109 x10^-31
Relative mass: 0
Relative charge: -1

Question 6

Atomic mass (mass number)

Answer 6

Protons + neutrons

Question 7

of electrons =

Answer 7

of protons

Question 8

Period

Answer 8

Horizontal row

Question 9

Group

Answer 9

Vertical column

Question 10

cation

Answer 10

positively charged ion formed when an atom loses one or more electrons

Question 11

Sodium cation=

Answer 11

Na+

Question 12

anion

Answer 12

negatively charged ion formed when an atom gains one or more electrons.

Question 13

An anion is named by changing the last part of the element name to ——followed by the word ——.

Answer 13

Ide
Ion

Question 14

Chlorine atom gains an electron to form a chloride ion. How do you write this?

Answer 14

Cl-

Question 15

Name inorganic compounds:

Cation    Anion    Name    
   Na+        Br-        —-
   Mg2-      O2-     —-
   Al3+        Cl-        —-

Answer 15

1. Sodium bromide
2. Magnesium oxide
3. Aluminum chloride

Question 16

Naming Monatomic Ions – Cations

Na+
Ca+2
Mg+2

Answer 16

1. Sodium
2. Calcium
3. Magnesium

Question 17

What is stock system and when do you use it

Answer 17

Roman numerals = chargers
Use when using transition metals

Question 18

-ic

Answer 18

Higher charge
Ex. Cu2+ is cupric

Question 19

-ous

Answer 19

Lower charge
Ex. Cu+ = cuprous

Question 20

Naming monatomic Ions- anions

Answer 20

Stem name of element followed by -ide
Ex. Br- is Bromide ion

Question 21

Whats the formula of titanium (IV) oxide?

Answer 21

TiO2

Question 22

Naming Binary Molecular Compounds

Answer 22

The first element is named using the exact element name.

Add prefixes if needed

The second element is named by writing the stem name of the element with the suffix -ide.

Question 23

Name SF4

Answer 23

sulfur tetrafluoride

Question 24

Name CO2

Answer 24

carbon dioxide

Question 25

Name CO

Answer 25

Carbon monoxide

Question 26

Weird ones to know: H2S H2O NH3

Answer 26

hydrogen sulfide (the “di” is omitted) Water Ammonia

Question 27

Name P4O6

Answer 27

tetraphosphorus hexoxide.

Question 28

Acids (what are they)

Answer 28

hydrogen ions and an anion

Question 29

How to name acids

Answer 29

Hydro + prefix of halogen + ic acid