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Gorman 1st 6 weeks
Study Guide for 1st SW test
Question | Answer |
---|---|
What is the center of the atom called? | Nucleus |
What subatomic particle determines the identity of an atom? | Proton |
What two subatomic particles have the same mass and are located in the nucleus | Proton and Neutron |
What two subatomic particles contribute to the overall charge of an atom? | Protons and electrons |
What particle is positively charged? | Proton |
What particle has a negative charge? | Electron |
What is the name of group 1 on the periodic table? | Alkali Metals |
What is the name of group 2 on the Periodic Table? | Alkaline Earth Metals |
If an element has 7 protons what is it? | Nitrogen |
Why is hydrogen placed with the alkali metal family? | Hydrogen has 1 valence electron |
What is the name of group 17? | Halogens |
What is the magic number of valence electrons an atom wants to have? | 8 |
What is the mass number of carbon? | 12 |
If a scientist wants to use an element like sodium but wants to use something with a higher atomic mass, which element could he pick? | Potassium, rubidium, cesium, or francium |
What are the characteristics for metals? | Shiny, good conductors of heat and electricity, malleable, ductile |
Where are metals located on the periodic table? | Left and center |
What are the characteristics of non-metals? | Brittle, dull, usually liquid or gas, poor conductors of heat and electricity |
Where are non-metals located on the periodic table? | right side |
What are metalloids? | Elements that share characteristics with both metals and non-metals |
Where are metalloids located on the periodic table? | Between metals and non-metals - along stair case line |
List examples of physical properties. | Luster, malleable, ductile, state of matter, solubility, color, shape, texture, size, density, mass |
List examples of chemical properties. | Flammibility, reaction with air, reaction with water, reaction with vinegar |
What has more in common - groups or periods? | Groups |
What do periods have in common? | Same number of electron shells |
What do groups/families have in common? | Similar chemical and physical properties |
What happens when chlorine combines with sodium? | Soduim loses an electron to chlorine - they combine to form sodium chloride NaCl |