Flashcards
subatomic particles
Flashcards do conjunto (4)
- 1—These shells are also called energy levels. The number of shells, and the number of electrons in the outer shell, varies from one element to another
- 2ISOTOPESAtoms of the same element with different numbers of neutrons are called isotopes. The different isotopes of an element have identical chemical properties. However, some isotopes are radioactive.
- 3relative formula massTo find the relative formula mass of a substance, you just add together the relative atomic mass values for all the atoms in its formula.
- 4relative atomic mass of elementThe relative atomic mass of an element (Ar) is an average value for the isotopes of the element
Informações
- Descrição
- GCSE Science (chemistry) FlashCards sobre subatomic particles, criado por s.ghillean em 24-02-2014.
- Criado por
- s.ghillean
- Visualizações
- 29
- Tags
- Avaliação