naming

Question 1

atoms are electrically…

Answer 1

neutral

Question 2

why are atoms electrically ____

Answer 2

Because there is the same number of protons (+) and electrons (-).

Question 3

ions are groups of atoms with a charge because

Answer 3

They have different numbers of protons and electrons.

Question 4

anion

Answer 4

negative ion; formed by gained electron

Question 5

cation

Answer 5

positive ion; formed by losing electrons

Question 6

(Predicting Ionic Charges) Group 1A

Answer 6

lose 1 electron to form 1+ ions

Question 7

(Predicting Ionic Charges) Group 2A

Answer 7

loses 2 electrons to from 2+ ions

Question 8

(Predicting Ionic Charges) group 3a

Answer 8

loses 3 electrons to form 3+ ions

Question 9

(Predicting Ionic Charges) group 4a

Answer 9

can be a positive or negative charge (4+ or 4-) so I need to look at chart to determine the charge

Question 10

(Predicting Ionic Charges) group 5a

Answer 10

gains 3 electrons to form 3- electrons

Question 11

(Predicting Ionic Charges) group 6a

Answer 11

gains 2 electrons to form 2- electrons

Question 12

(Predicting Ionic Charges) group 7a

Answer 12

gains 1 electron to form 1- ions

Question 13

(Predicting Ionic Charges) group 8a

Answer 13

noble gasses no charge!!!!!!!!!!

Question 14

(Predicting Ionic Charges)

Answer 14

Many transition elements have more than one possible oxidation state. Use roman numerals to show charges

Question 15

How to write covalent compounds

Answer 15

Prefix + name, Prefix +name+ide

Question 16

Prefixes for covalent compounds

Answer 16

• 1 = mono-
• 2 = di-
• 3 = tri-
• 4 = tetra-
• 5 = penta-
• 6 = hexa-
• 7 = hepta-
• 8 = octa-
• 9 = nona-
• 10 = deca-

Question 17

When naming ionic compounds

Answer 17

Cation (+) first then anion (-)
Determine if it has multiple charges
Regular name then name with ide

Question 18

Writing ionic compounds

Answer 18

Determine charge
Make them balenced
Criss cross them

Question 19

Anions are always

Answer 19

The same charge

Question 20

If anions end with ide or ate

Answer 20

Ide: on periodic table
Ate: polyatomic

Question 21

Binary acids

Answer 21

Made of 2 elements
Will always get the hydro and -ic

Question 22

Oxiacid

Answer 22

NO hydro
ate = ic ending
ite = ous ending

Question 23

If the acid has 1 more oxygen than the -ic acid…

Answer 23

add the prefix per

Question 24

If there is 1 less oxygen than the
-ous acid,

Answer 24

Add the prefix hypo

Question 25

Writing acids

Answer 25

Hydrogen will be listed first
The name will tell you the anion
• Be sure the charges cancel out.
•Starts with prefix hydro?- there is no oxygen, -ide ending for anion
• no prefix hydro?

Question 26

Law of Definite Proportions

Answer 26

in a sample of a chemical compound, the masses of the elements are always in the same proportions.

Question 27

Law of Multiple Proportions-

Answer 27

Dalton stated that whenever two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in the ratio of small whole numbers.