Periodic Table Flashcards
Who created one of the first periodic tables?
Dimitri Mendeleev
What is an element?
Only one type of atom
What are horizontal rows called on the periodic table?
Periods
What are vertical columns called in the periodic table?
Groups
Roughly how many elements are there in the periodic table?
118 elements
Where are metals located in the periodic table?
On the left side and middle
Where are non metals located in the periodic table?
Right side
What are 5 properties of metals?
Strong
Shiny
Malleable
Conduct energy
Conduct electricity
5 properties of non metals?
Dull
Brittle
Poor conductors of heat and energy
Low density
Low melting point and low boiling point
What is a compound?
Two or more elements chemically joined together.
What is a molecule?
Two or more atoms joined together
What does daltons model show?
All matter is made of atoms
There are differnt types of atoms
Each element contains a different type
What is an atom?
the smallest part of a substance (tiny participles)
What is the symbol for iron?
Fe
What is the symbol for carbon?
C
What is a trend?
Pattern of changes
What is the word equation for burning magnesium?
Magnesium + oxygen = magnesium oxide
What equipment do you need to test burning magnesium?
Tripod, gauze, 100cm water in breaker, thermometer, clamp and Bunsen burner for heat.
Why is the mass of the reactants the same as the mass of the products?
Atoms are indestructible and cannot be created or destroyed. They are simply rearranged. The law of conservation of mass
Word is the product when sodium and water react with each other?
Soduim hydroxide + hydrogen
Word equation for the reaction of lithium + water?
Lithium + watee = lithium hydroxide
Word equation for reaction of sulphur and oxygen
Sulphur + oxygen = sulphur dioxide
What is diffusion?
particles move from a higher concentration to a lower concentration.
If you remove volume does the pressure increase or decrease?
the pressure increases because when particles are squashed in a smaller space they’ll hit the walls.
What is the features of noble gases?
Non metals
Very unreactive
Colourless
Odourless
Low boiling points
Features of transition metals?
High melting points
Conductors of heat
All metals
High density
Conductors of electricity
What is an anomalous result?
An unexpected result
What is group 7 called?
Halogens
What is group 1 called?
The alkali metals
What is the central block called in the periodic Table?
Transition metals
Group 7 &0 noble gases and halogens are metals or non metals?
Non metals
What is group 2 called in the periodic table?
Alkaline earth metals
What is matter?
all things are made of matter. The three are solid, liquid and gas.
Examples of chemical change
Colour change, temperature change, odour change, light being produces, thermal change, fizzing
What is a chemical reaction?
A process that changes and rearranges atoms to form one or more new substances.
