Define what is a chemical property? give four example

1.Radioactivity - The emission of radiation from an atom with an unstable nucleus, is a chemical property. On the periodic table of elements, the elements that have no stable isotopes are considered radioactive.
2. Flammability - How easily something will burn or ignite, is a chemical property because you can’t tell just by looking at something how easily it will burn. Fire testing is done to determine how difficult or easy it will be to get a certain material to burn.
3.Toxicity - How much a substance can damage an animal, plant, cell, organ, or other organism is its toxicity. Materials with the chemical property of toxicity include lead, chlorine gas, hydrofluoric acid, and mercury. Toxicity is measured by how the lead, chlorine gas, mercury, or other substance affects the organism – basically, by how much damage it does to the organism and how quickly that damage occurs.
4.Heat of Combustion - This chemical property is the amount of energy that is released as heat when a substance is burned with oxygen.

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