Flashcards
atomic structure
Cards in this deck (9)
- 1what is the atomic numberThe number of protons in an atom is called its atomic number. In the periodic table atoms are arranged in atomic number order.
- 2what are electrons arranged inElectrons are arranged in energy levels or shells, and different energy levels can hold different numbers of electrons. The electronic structure of an atom is a description of how the electrons are arranged, which can be shown in a diagram or by numbers. There is a link between the position of an element in the periodic table and its electronic structure.
- 3label an atom
- 4what are the charges on the particles
- 5why do atoms have no overall chargeThe total number of electrons in an atom is always the same as the number of protons in the nucleus. This means atoms have no overall electrical charge.
- 6what are electrons arranged inElectrons are arranged in different shells around the nucleus. The innermost shell - or lowest energy level - is filled first. Each succeeding shell can only hold a certain number of electrons before it becomes full
- 7whats the maximum electrons the first three energy levels can hold
- 8describe the electronic structure of lithium
- 9what is the structure of the first 20 elements
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- GCSE Chemistry Flashcards on atomic structure, created by ella stokes on 21/02/2017.
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- ella stokes
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