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Chemistry Test
| Question | Answer |
|---|---|
| Atomic-number | Number of protons in the nucleus. |
| Halogens | Are in the element group 17. |
| Rutherford | Came up with the silver foil experiment. |
| 2C6H12O6 | There are 6 oxygen atoms present in this chemical formula. |
| Ne | Is Neon, the ionic charge is negative (-). |
| CO2 | An example of a compound. |
| Na | Sodium. |
| Family-of-Elements | Is located in a vertical group on the periodic table. |
| Mendeleev | Use elements chemical prperties to organize them on the periodic table. |
| Solid | Most elements are know in this state of matter. |
| Mass-Number | Tells the number of protons and neutrons in the nucleus. |
| Nucleus | In an atom the nucleus contains most of the meass and all of the positive charge. |
| Ions | Is an atom that has gained or lost electrons. |
| Physical-Charge | During a Physical Charge the particles are not charged. |
| Hypothesis | In a lab report the scientist makes a prediction before he carries out the experiment. |
| Homogeneous | An example is Tea |
| Pure-Substance | An example is a glass of water |
| Physical-Reaction | Ice melting |
| Chemical-Reaction | Gasoline burning in car engines |
| Qualitative | Someones oppinion |
| Quantitative | Dealing with numbers |
| Independent | Doesn't rely on other variables |
| Dependent | Is affected by other variables |