Flashcards
atoms
Flashcards do conjunto (11)
- 1what is an atom?the fundamental building blocks of all things.
- 2what is an atomic number?the number of protons in a nucleus.
- 3what is a compound?a pure substance made up of two or more different types of atoms.
- 4what is used to look at an atom?STM
- 5how many known atoms are there?118 atoms.
- 6how many atoms are naturally found on Earth?91 are naturally found on Earth.
- 7how many atoms are made in a laboratory?27.
- 8what is a molecule?a cluster of atoms.
- 9what is an element?a substance made of just one atom.
- 10what is the nucleus?protons and neutrons sitting in the center of an atom.
- 11what are atoms made up of?Nucleus , Electron cloud ,protons ,neurons.
Informações
- Descrição
- medium science FlashCards sobre atoms, criado por husien jama em 17-04-2016.
- Criado por
- husien jama
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- 11
- Avaliação