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Science semester 1
study this if u go to McC
| Question | Answer |
|---|---|
| Imdependent variable | single factor in an expirement that changes |
| Dependent variable | factor that will be measured in an expirement |
| Qualitative observation | observation that describes anything but numbers |
| Quantitative Observation | observation that describes numbers |
| Independent varriable goes on which axis? | X axis |
| dependent varriable goes on which axis? | Y axis |
| temprature | average kinetic energy of the particles in a substance |
| what groups are the representative elements?? | Groups 1,2,13-18 |
| what is the name of group 1 | alkali metals |
| group 2 | alkaline earth metals |
| group 17 | halogens |
| what do metals do to become stable?? | loose electrons |
| what do non metals do to become stable?? | gain electrons |
| an elements identity is determined by the amount of | protons |
| radioactive decay occurs in the... | neucleus |
| during alpha particle decay an atom looses... | 2 protons and 2 nuetrons |
| during beta partical emmision... | a neutron splits in to and electron and a proton |