Periodic Table Flashcards
(25 cards)
What does the periodic table have on it?
All the elements ordered by their atomic number in different groups based on their properties.
Elements are used to form other substances.
True or False?
True.
Elements on the periodic table are NOT represented by their element symbol.
True or False.
False
Every element can combine with each other in any quantity.
True or False?
False. Only certain elements can combine in measured quantities.
Where are metals found on the periodic table?
Center left.
What are the characteristics of metals?
-Dense
-Lustrous (shiny)
-Malleable (can be molded)
-Have high melting points (high temperatures are needed to turn them into liquids)
-Great conductors of heat and electricity
What are the properties of nonmetals?
-Dull (not shiny)
-Brittle (breaks easily when force is applied)
-Not great conductors of heat and electricity
metalloids have properties from metals and nonmetals.
True or False?
True!
Who made the first Periodic Table and what theory inspired him to do so? How many elements were there when he made this?
- Dmitri Mendeleev
- Dalton’s Theory
- 63 elements
What information does the periodic table show about the elements?
- Atomic name
- Atomic symbol
- Atomic number
- Atomic Mass
How do you find the number of neutrons in an element?
Atomic mass - Atomic number
(Protons + Neutrons - Protons)
What is the atomic name?
The name of the element.
What is the atomic symbol?
1-2 letters representing the element on the periodic table.
What is the atomic number?
Number of protons (in the nucleus) in an atom of an element.
What is the atomic mass?
Mass of an atom of the element. (protons + neutrons)
Where to find the atomic number of an element on the periodic table?
Top left corner
Where to find the atomic mass of an element on the periodic table?
Top right corner or bottom center.
Where to find the atomic symbol of an element on the periodic table?
Center
Where to find the atomic name of an element on the periodic table?
Bottom center.
What is an ion?
An atom with a charge (positive or negative).
What is a cation?
A positive ion.
What is an anion?
A negative ion.
What is a Group on the periodic table?
Vertical columns in the periodic table. Each group has similar phisical and chemical properties.
What is a Period on the Periodic Table?
The horizontal rows on the periodic table.
