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Beschreibung
Karteikarten von Ali Aldhalimi, aktualisiert more than 1 year ago
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Erstellt von Ali Aldhalimi
vor mehr als 8 Jahre
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| Frage | Antworten |
| What is an atom? | a building block of everything. |
| what is an atomic number? | its the number of protons in a nucleus. |
| what's the 3 particles that make up atoms? | protons neutrons electrons |
| how many atoms are on the periodic table? | 118 |
| what are clusters of atoms known as? | molecules |
| how many electrons are in each shell? | 1-2 2-8 3-18 |
| what is a compound? | a pure substance that is made up of 2 or more different types of atom chemically joined. |
| what is a element? | a substance made up of only one type of atom. |
| what did NielsBohr propose? | he proposed that electrons can only travel along certain pathways around the nucleus. |
| what did Ernest Rutherford discover? | he discovered that the nucleus only takes up a small fraction of the space inside an atom. |
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