Periodic Table Flashcards
Element
A single substance made up of one type of atom that has been discovered and is listed on the periodic table
Group
A group is a vertical line in the periodic table. There are 8 groups.
Period
A period is a landscape line across the periodic table.
Alkali metals
Alkali metals reactive vigorously when put into water. They have 1 electron in there outer shell. The alkali metal group is also known as group 1
Alkaline earth metal
Alkaline earth metals are metal elements that have 2 electrons in there outer shell.
Halogens
Halogens are elements with 7 electrons in there outer shell
Noble gasses
Noble gasses are the gasses in the periodic table and are all in one group
Transition metals
Transition metals are the metals that are not in group 1 or group 2 because they don’t actually have a group they are in.
Periodic table
The periodic table is the table which lists all of the single elements that we have discovered so far. This goes from metals all the way to gasses.
Metal + acid
Metal + acid = salt + hydrogen
E.g zinc + sulphric = zinc sulphate + hydrogen
Metal + water
Metal + oxygen = metal oxide
Eg zinc + oxygen = zinc oxide
Metal + water
Metal + water = metal hydroxide + hydrogen gas
Eg potassium + water = potassium hydroxide + hydrogen gas
Displacement reactions
A displacement reaction is when two elements are in a mixture together and another element which is higher on the reactivity series replaces the original element.
E.g lithium oxide + sodium would turn into sodium oxide + lithium.
Metal ores
A metal ore is a object found in the earths crust that contains a metal plus something else for example when you find a copper in an ore it is copper plus oxygen and then you have to extract it to get pure copper
Metals are extracted from ores using…
Metals are extracted from ores using heated carbon to melt put the metal but if the metal has a greater reaction than carbon than you have to use something else that will be able to replace that metal. Some metals like gold that are unreactive don’t come in an ore.
Thermite reaction
Thermite reaction is a displacement reaction between two substances.
Reactivity series
The reactivity series is a table that shows elements and how reactive they are with other compounds. Most vigorous elements are at the top and least vigorous elements are at the bottom.
