6-1 notes
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| What is an element? | substance that can't be broken down into something else. (Pure) |
| Why are elements important to living things? | The elements ability to form bonds that make the compounds needed for living things. |
| What percentages of elements are used by living things? | 25% |
| What are the elements of life? | Carbon, Hydrogen, Oxygen, and Nitrogen |
| What are the molecules of life? | DNA, Protein, Sugars, and Fats. |
| What is the smallest particle of an element? | Atoms |
| What are the basic building blocks of matter? | Atoms |
| What controls the reactivity of atoms? | The STRUCTURE of an atom. |
| What are the three parts of an atom? | Proton, Neutron, Electron. |
| Which atomic particle is positive? | Proton |
| Which atomic particle doesn't have a charge? | Neutron |
| Where is the first energy level located in an atom? | outside of atom |
| How many electrons can fit in the first energy level? | 2 |
| How many electrons can fit in the second evergy level? | 8 |
| How are elements organized on the periodic table? | by their charaistics |
| What are the three general types of elements? | metals, non-metals, metalloids |
| What information can be learned from the atomic number of an element? | number of protons and electrons |
| What is unique about an atoms electron and proton number? | They are always the same. |
| What is atomic weight? | Weight of one atom calculated by adding the protons together. |
| How are proton numbers calculated for an atom? | Atomic number. |
| How are electron numbers calculated for an atom? | atomic number. |
| How are neutron numbers calculated for an atom? | atomic weight
-atomic number
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neutron |
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