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14 Cards in this Set
- Front
- Back
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Ionic Compound and how to name it. |
Metal and a non-metal
Metal, non-metal and add ide. |
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Ion |
An atom that has gained or lost an electron to become stable, it then becomes charged. |
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Describe the charge of each group. |
Alkali Metals +1 Alkaline Earth Metals +2 Group 3 +3 Group 4 +4 Group 5 -3 Group 6 -2 Halogens -1 |
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State the properties of ionic compounds. |
- crystalline solids - electrolytes - high melting and boiling points - transfer electrons - metal + non-metal |
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State the properties of covalent / molecular compounds. |
- powders, gases - non-electrolytes - low melting and boiling points - share electrons - 2 non-metals |
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Covalent / molecular compound and how to name it. |
Made up of 2 non-metals that share electrons in covalent bonds.
Add prefixes to the names depending on the number of atoms. |
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Name the 5 special compounds and their symbols. |
Methane CH4 Ammonia NH3 Ozone O3 Hydrogen peroxide H2O2 Ethane C2H6 |
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Elements and their colours. |
Oxygen - red Carbon - black Nitrogen- blue Hydrogen - white |
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# of atoms and prefixes |
1- mono 2- di 3- tri 4- tetra 5- penta 6- hexa 7- hepta |
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Advantages and disadvantages of fluorine. |
Advantages: - helps strengthen tooth enamel and reduce cavities - fluorine in water helps reduce tooth decay
Disadvantages: - harmful when exposed to the environment - may cause cancer, fragile bones and improper brain development in children |
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Advantages and disadvantages of fertilizer, |
Advantages: - faster plant growth - more plants in less space - lower labour cost - reduced cost of food products - less spoilage
Disadvantages: - fertilizer can be carried by waterways into lakes and rivers - affects ecosystem in negative ways : algae takes up the oxygen in water and causes aquatic life to die. |
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Advantages and disadvantages of road salt. |
Advantages: - prevents the formation of ice - helps break up the snow so it's easier to plow - makes roads safer - reduces medial and insurance costs
Disadvantages: - attracts animals which causes hazardous conditions for both animals and humans - increases corrosion on cars, trucks and bridges - harmful to local ecosystems - enters soul and waterways which causes slow or inhibit plant growth |
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Advantages and disadvantages of plastic. |
Advantages: -numerous items we use everyday are made of plastic - plastic bags make it easier to carry items - inexpensive
Disadvantages: - not biodegradable - breaks down into smaller particles that contain toxic materials - leach into water and soil - animals can mistake plastic for food |
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Solutions for plastic bags. |
- using reusable cloth bags are better for the environment - the government charges money for plastic bags |
