Metals and Non-metals
How many elements exist naturally?
92
What are vertical columns in the periodic table called?
Groups
What is the common name for group 1 elements?
Alkali metals
What is the common name for the elements in group 0 ?
Noble gases
What is the common name for the elements in Group 7?
Halogen
State two metals and two non-metals from periodic table
Metals- Sodium, Magnesium
Non-metals - Sulphur, Oxygen
What are the horizontal rows in the periodic table called?
Period
Name two physical properties of Group 1 elements.
Soft metals, low density.
Name three examples of noble gases.
Helium, Neon, Argon,
Name two examples of halogens.
Examples: Chlorine, Bromine, Iodine.
What is the product when magnesium react with oxygen?
Magnesium oxide
Which group contains alkali metals?
Group 1
What happens to the boiling point as you move down Group 1?
Boiling point decreases as you move down Group 1.
What pattern is observed in boiling points of Group 0 elements as you move down the group?
Boiling points increase as you move down Group 0.
State one use of chlorine.
sterilizing drinking water.
Using periodic table predict calcium is metal or non-metal?
Metal
What happens for the melting point of the element as we moving down the group?
It increases
What gas is produced when Group 1 elements react with water?
Hydrogen
Why are noble gases used in advertising signs?
Noble gases are used in advertising signs because they emit bright colours when electrified.
What pattern is observed in boiling points of Group 7 elements as you move down the group?
Boiling points increase as you move down Group 7.
What is the term for elements that have properties of both metals and non-metals ?
Metalloids
Name the group that contains noble gases.
Group 0
Why are Group 1 elements stored in oil?
Group 1 elements are stored in oil to prevent reaction with oxygen and moisture in air.
State one physical property of noble gases.
Physical property: colourless gas at room temperature.
What is a displacement reaction?
A displacement reaction is when a more reactive element displaces a less reactive element from its compound.