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Flashcards do conjunto (7)
- 1What is an atom?The smallest particle of a chemical element that can exist.
- 2What does the nucleus of an atom contain?An atom is made from a nucleus surrounded by electrons. The nucleus contains protons and neutrons.
- 3What does an electron have?A negative charge.
- 4What do all atoms have the same number of?Protons and neutrons.
- 5What is the atomic number?Number of protons.
- 6What are atoms with the same number of protons but a different number of neutrons called?Isotopes.
- 7What is the maximum number of electrons in each shell?2,8,18
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- FlashCards sobre Sem título, criado por jordycotter em 23-04-2015.
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