Unit 3: Peridoc Table Flashcards
Periodic table definition
A table/ chart that displays information about all the known chemical elements
Element
A pure substance that cannot be broken down into a simpler substance by any means (on the periodic table)
What scientist organized the periodic table?
Dmitri Mendeleev
How many groups are in the periodic table?
18
What is another way to say groups
Chemical families
T or F: The groups/chemical families are in 18 rows
False: the groups/chemical families are in 18 columns
How many periods are in the periodic table
7
True or false: Periods are in 7 rows
Trill
What are the 4 ways the periodic table is organized in?
- It is divided into metals, non-metals, and metalloids
- It is organized into 7 rows which are called periods
- It is divided into 18 columns which are called groups or chemical families
- It is organized in order of atomic numbers
What are metals
An element that is lustrous, malleable, ductile, and conducts heat and electricity
Where are metals found on the periodic table
Found on the left and Central parts of the periodic table
(found on the left of the staircase/amphoteric line)
What is a non-metal
Usually a gas or a dull, powdery solid that is not malleable or ductile and does not conduct heat or electricity
Where are non-metals found on the periodic table
Found on the right side of the periodic table
(Found on the right of the staircase/amphoteric line)
What are metalloids
An element that has properties of both metals and non-metals
Where are Metaloids found in the periodic table
They are located along the staircase on the periodic table
What are periods on the periodic table
They are 7 horizontal rows
