PHYSICAL PROPERTIES
This non-metal is a liquid at room temperature, with a red-brown colour and strong odour.
What is Bromine ?
Non-metals tend to gain or share electrons to form this type of ions.
What are negative ions / anions?
This gas is often prepared in the laboratory by reacting manganese dioxide with concentrated hydrogen peroxide (H₂O₂) as a catalyst.
What is oxygen?
This non-metal is used in the manufacture of fertilizers (e.g. nitric acid) and as a cooling agent in liquid form.
what is nitrogen?
This gas, produced by combustion of fossil fuels, contributes to the greenhouse effect and climate change
what is carbon dioxide?
Non-metals typically have low ____ and low ____ compared to metals.
what are boiling and melting points
When non-metals react with metals, they often form ____ (ionic / covalent) compounds
What are ionic compounds?
Hydrogen gas may be collected by reacting a metal like zinc with this acid.
What is dilute sulphuric acid (H₂SO₄)
Silicon, a non-metal (or metalloid), is essential in the manufacture of these electronic components.
What are semiconductors / computer chips?
This dangerous oxide, formed when nitrogen reacts with oxygen at high temperatures, contributes to acid rain and respiratory problems.
What is nitrogen dioxide, NO₂
This non-metal has its atoms arranged in layers that can slide over each other, making it a good lubricant and conductor of electricity in one direction.
what is graphite?
Oxygen reacts with many non-metals. The reaction of sulfur with oxygen produces this product (formula)
What is sulfur dioxide, SO₂
This gas is commonly prepared by the reaction of a carbonate with a dilute acid (e.g. sodium carbonate + HCl).
What is carbon dioxide?
This non-metal is used for disinfecting water and in bleaching, in the form of its compounds (e.g. sodium hypochlorite).
what is chlorine?
what is the utilisation of a set of principles in the design, manufacture and application of chemical products that reduces or eliminates the use and generation of hazardous substances.
what is Green Chemistry
Non-metals are often ____ and ____
What are poor conductors of heat and electricity?
A halogen can act as an ____, accepting electrons to be reduced.
What is oxidising agent?
This gas is used in the manufacture of ammonia via the Haber process, and also in hydrogenation of fats.
What is hydrogen?
Carbon in the form of graphite is used in making these for electrochemical cells and pencils
What are electrodes / pencil leads?
Chlorofluorocarbons (CFCs), once popular refrigerants, damage this part of Earth’s atmosphere.
What is the ozone layer?
This non-metal in its allotrope is an extremely hard, transparent crystalline form with very high hardness and thermal conductivity.
what is diamond?
When chlorine reacts with water, it can produce this weak acid (given formula)
What is hydrochloric acid, HCl, and hypochlorous acid, HClO?
Used in fire extinguishers and as a non-reactive atmosphere for metals, this gas is also produced by air separation.
What is nitrogen?
This non-metal is used to make fertilizers, explosives, and dyes; its compounds include nitric acid (HNO₃).
what is nitrogen?
This non-metal gas, when dissolved in water as an acid, can corrode metals and damage vegetation, being a component of acid rain.
What is sulfur dioxide, SO₂