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WorksheetsExploring the Elements
Total questions: 10
Worksheet time: 5mins
What is the atomic number of krypton?
36
12
54
18
What is the primary use of copper in electrical applications?
Electrical wiring and conductors.
Plumbing and piping systems.
Jewelry and decorative items.
Construction materials for buildings.
Which gas makes up about 78% of the Earth's atmosphere?
Oxygen
Nitrogen
Carbon Dioxide
Hydrogen
What is the symbol for krypton on the periodic table?
Kr
Kr2
Kx
K
What is the melting point of copper in degrees Celsius?
1200
900
1050
1084.62
What is the molecular formula for nitrogen gas?
N4
N2
N3
N
In what year was krypton discovered?
1898
1901
1885
1895
What is the conductivity property of copper?
Copper has low electrical conductivity.
Copper is a poor conductor of electricity.
Copper has no conductivity properties.
Copper has high electrical conductivity.
What role does nitrogen play in the formation of amino acids?
Nitrogen is a byproduct of amino acid synthesis.
Nitrogen is essential for the formation of amino acids as it is a key component of the amino group.
Nitrogen is only involved in the energy production of cells.
Nitrogen is not necessary for amino acid formation.
What is the state of krypton at room temperature?
Gas
Solid
Liquid
Plasma
