Chapter 2 - Atoms molecules and ions

Question 1

what is the mass number?

Answer 1

number of protons and neutrons

Question 2

what is the atomic number?

Answer 2

number of protons only

Question 3

What is an ion called when they gain electrons

Answer 3

anion

Question 4

what is an ion called when they loose electrons

Answer 4

cation

Question 5

What are the conditions for naming type one ionic compounds

Answer 5

Cation is named first then anion
anions ending is changed to ide
no prefixes

Question 6

what are the conditioned for naming type two ionic compounds

Answer 6

cation is named first then anions
anions ending is changed to ide
charge of transition metal is shown in roman numerals
no prefixes

Question 7

For polyatomic ions, which one ends with -ite and which with -ate

Answer 7

the one with smaller number of oxygen atoms is -ite

the one with more oxygen atoms is -ate

Question 8

what do you do for polyatomic ions that start with H

Answer 8

add hydrogen prefix

Question 9

What are the conditions for naming covalent compounds?

Answer 9

first element you use the full name
second element change ending to -ide
use prefixes to show number of subscripts

Question 10

What are the prefixes for naming

Answer 10

one - mono
two - di
three - tri 
for - tetra 
five - penta 
six - hexa 
seven - hepta

Question 11

How do you name an acid when the anions does not contain oxygen?

Answer 11

Add prefix hydro
non metal names change the ending to -ic
write acid at the end

Question 12

How do you name and acid when the anions contains oxygen?

Answer 12

If it ends in -ate change to -ic
if it ends in -ite change to -ous
write acid at the end