CHEM MID TOPIC TEST

Question 1

PERIODS

Answer 1

Elements in the same period have the same # of electron shells

Question 2

GROUPS

Answer 2

-Elements have the same # of electrons in their outer valence shell
>meaning they have similar properties
>as you move down the group, the elements become more reactive

Question 3

All ionic compounds are

Answer 3

SALTS

Question 4

Ionic compounds are made up of

Answer 4

A positive ion and a negative ion

Question 5

Naming ionic compounds

Answer 5

1. ide at the end of negative ions
2. consider polyatomic ions (an ion composed of two or more atoms)
3. Roman numerals

Question 6

POSITIVE IONS

Answer 6

-metal elements
-donate electrons, to get a full, stable outer shell
-The name of the ion is the same as the element

Question 7

NEGITIVE IONS

Answer 7

-non- metal elements
-gain electrons
>to achieve a full, stable outer shell
-The name of the ion is different to the name of the element.

Question 8

DEFINE ION

Answer 8

A charged atom