Flashcards
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Flashcards do conjunto (20)
- 1What is an atomIts the smallest form of a chemical particle that retains the properties of the particle
- 2ProtonA positively charged sub atomic particle
- 3NeutronA sub atomic particle with no charge
- 4ElectronA negatively charged sub atomic particle
- 5IsotopeAn isotope is an atom with the same number of protons but a different number of neutrons
- 6Isotopes are identified by theirMass number
- 7The mass of an atom is calculated howBy adding the number of protons with the number of neutrons
- 8An oxygen molecule is made up of whatTwo oxygen atoms
- 9Neutrons are a type of subatomic particle withWith no charge
They are neutral - 10A molecule is aChemical unit capable of independent existence and can consist of one or more atoms
- 11Molecules containing only one atom areMonatomic molecules
- 12The minimum number of oxygen atoms that can exist independently is2
- 13Molecules containing two or more different elements areCompounds
- 14A compound is a substance containingTwo or more elements chemically bonded together
- 15There are two main types of compoundsIonic and covalent
- 16Covalent bonding occurs when atomsshare (rather than lose or gain) electrons to stabilise their respective outer shells.
- 17Ionic bonding occurs whenTwo or more elements chemically react to form a new substance and there is a respective loss and gain of electrons in the process
- 18When an atom donates one or more electrons to the compound it becomes acation (positive ion) because it possesses more protons than electrons
- 19When an atom gains one or more electrons in forming a compound it becomes anAnion (negative ion) because it has more electrons than protons
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Informações
- Descrição
- 12 Chemistry FlashCards sobre Sem título, criado por abbie j em 04-07-2022.
- Criado por
- abbie j · jul 2022
- Atualizado
- 5 jul 2022
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