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Super-Heavy Elements
Phrase cards for repeated reading of Newsela "Super-Heavy Elements"
Question | Answer |
---|---|
periodic table | a table showing chemical elements, arranged in the order of their atomic numbers |
international scientific group | * * * |
newly discovered elements | * * * |
deserve a permanent spot | * * * |
separated into smaller substances | * * * |
center of each atom is a nucleus | the center of an atom that contains positive and neutral particles |
nuclei | the word that means more than one nucleus |
nuclei of their atoms are so enormous | * * * |
huge, super-heavy elements are not normally | * * * |
special laboratories | * * * |
might exist | * * * |
supernova," said acientist Dawn Shaughnessy | the explosion of a star, possibly caused by gravitational collapse |
really heavily concentrated | * * * |
Lawerence Livermore National Laboratory | * * * |
chart listing all the elements | * * * |
highly unstable. They exist | * * * |