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Science Chapter 16
chapter 16
| Question | Answer |
|---|---|
| Atomic Mass | The average mass of one atom |
| Periodic Table | A table of elements |
| Nucleus | The core of an atom |
| Proton | Smaller particles in the nucleus |
| Neutron | Small Particles outside of the nucleus |
| Electron | Small particles outside of the nucleus |
| Atomic Mass Unit (amu) | Used to measure the particles of an atom |
| Atomic Number | The number of protons in in it s nucleus |
| Chemical Symbol | A one or two letter symbol |
| Group | The elements in a column |
| Family | The elements in a column also called groups |
| Period | A horizontal row across a table |
| Valence Electrons | Electrons that involve transfer or sharing |
| Malleable | A material that can be pounded into many other shapes |
| Ductile | A material that can be pulled out or drawn into an long wire |
| Conductor | A metal that transmits heat and electricity easily |
| Magnetic | Metals that are attracted to magnets |
| Reactivity | The ease and speed at witch an element combines or reacts with other metals |
| Corrosion | The wearing away of a metal |
| Alloy | A mixture of metals |
| Alkali Metal | The metals are so reacted they are never found inn nature |
| Alkaline Earth metals | Not as reactive as alkali they are gray and white |
| Transition Metals | Form a bridge between very reactive metals |
| Lanthanide | The elements at the bottom of the table |
| Actinide | Rare earth metals |
| Non metal | Elements that lack most of the properties of metals |
| Diatomic molecule | When they contain only two metals |
| Halogen Family | 7 valence electrons very reactive |
| Noble Gas | They do not lose gain or share there Valence Electrons |
| Matalloid | Have half of the characteristics of metals and some of the characteristics of non-metals |
| Semiconductor | Substances under the same conditions carry electricity |
| Plasma | Atoms are stripped of there electrons and the nuclei are packed closely together |
| Nuclear Fusion | When colliding nuclei have enough energy to join together |
| Suernova | A tremendous explosive that breaks apart |
Created by:
kodamiller
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