Answer:
change temperature at different rates
Answer:
fluoride ion
Explanation:
If atoms gain electrons, they become negative ions, or anions. Consider the example of fluorine (see Figure below). A fluorine atom has nine protons and nine electrons, so it is electrically neutral. If a fluorine atom gains an electron, it becomes a fluoride ion with an electric charge of -1.
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When the skate board is resting, it has potential energy, if it started to move the energy would increase and become kinetic energy.