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Science test 1
Flashcards
| Question | Answer |
|---|---|
| proton | a positively charged particle |
| electron | a negatively charged particle |
| neutron | a uncharge particle |
| nucleus | the core of an atom |
| element | a substance that make only one kind of atom |
| molecule | 2 or more atom that bond together |
| atomic # | the # of proton in a atom |
| atomic mass (#) | the # of protons and neutrons in a atom |
| isotopes | atoms that gain or loses one or more electron(s) |
| ions | atoms that gain or loses one or more neutron(s) |
| periodic table | a repeating pattern of properties of elements |
| periods | horizontal rows in the periodic table |
| metals | elements that conduct electricity and heat and are shiny |
| alloys | the combination of 2 or more metals |
| metalloid | elements that have properties of both metals and non- metals |
| non-metals | have properties opposite of metals |