Periodic table
What do we call as a period in periodic table?
Bonus (+ 200) how many periods are there?
Period is a horizontal line
There are 7 periods
What are the symbols for the following elements?
Hydrogen, helium
H, He
Give 2 metal properties
Shiny when polished, High melting point
What is the second most common gas in air?
Oxygen
What is the most common gas in the air?
Bonus (+200): Where is it used?
Nitrogen
It used in chemistry and industry
What do we call as a group in the periodic table?
Bonus (+100): How many groups are there?
Group is a vertical column
There are 18 groups
Name the following elements:
O, N
Oxygen, Nitrogen
Give 2 non-metal properties
Not shiny, Low melting point
Give the main way how water vapor gets into air
Water evaporating from the surface of the ocean
Name two element gases in air.
Oxygen, Nitrogen
How to identify a metal from its position on the periodic table?
Bonus (+200) draw the line that splits the periodic table on metals and non-metals.
Metals are at the left, non-metals at the right
What are the symbols for the following elements?
Calcium, Carbon
Ca, C
Which element is suitable to make the cable from it?
Bonus (+200): Give two properties that make this element suitable
Copper, Aluminium
Good conductor of electricity, Ductile
Give the chemical formula of carbon dioxide
CO2
Define the air
Air is the mixture of gases
Name the elements in the first period.
H, He
Name the following elements:
Mg, Si
Magnesium, Silicon
Name 3 metal and 2 non-metal elements:
Iron, gold, silver
sulfur, hydrogen
What gas we inhale more than inhale?
Explain your answer
Oxygen
We inhale oxygen and exhale carbon dioxide
What is the usage of the following gases:
oxygen, carbon dioxide
(+100) argon
filling diver cylinders, fizzy drinks
filling bulbs
How do we call elements in group 18?
Bonus (+300): Name 5 of these elements
Noble gases
Neon, argon, helium, xenon, krypton
Give the symbol or name for the following elements:
Iron, Al, S, Copper, Zinc
Fe, Aluminium, Sulfur, Cu, Zn
Name 5 metal properties of metal elements and 4 properties of non-metal
Bonus (+200) Explain each of these properties:
Metal: shiny when polished, malleable, ductile, high melting point, good conductor of heat and electricity
Non-metal: Not shiny, low melting point, brittle, insulator
Name the gases that make up air and their percentage
Nitrogen: 78%
Oxygen: 21%
Argon: 0.9%
Other gases, including carbon dioxide - 0.1%
Name two compound gases in air
carbon dioxide, water vapor