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Element Symbols
Chemistry
| Element | Symbol |
|---|---|
| Hydrogen | H |
| Aluminum | Al |
| Iron | Fe |
| Lead | Pb |
| Carbon | C |
| Silicon | Si |
| Cobalt | Co |
| Nitrogen | N |
| Sulfur | S |
| Oxygen | O |
| Copper | Cu |
| Chlorine | Cl |
| Zinc | Zn |
| Sodium | Na |
| Calcium | Ca |
| Silver | Ag |
| Magnesium | Mg |
| Potassium | K |
| Gold | Au |
| Mercury | Hg |
| Phosphorus | P |
| Manganese | Mn |
| The atomic number tells you what? | The number of protons |
| The atomic mass equals... | Protons + Neutrons |
| Most of the mass from the atom comes from... | Inside the nucleus |
| What are groups? | Groups are the columns on the periodic table that are based on how many electrons are in the outer shell |
| What are periods? | Periods are the rows on the periodic table that are based on how many electron shells the element has |
| Almost all of the elements on the periodic table are classified as metals, nonmetals, or metalloids? | Metals |
| What charge do protons have? | Positive |
| What charge do electrons have? | Negative |
| What charge do neutrons have? | No Charge |
| Chemical Property or Chemical Change are indicated when... | it is undergoing a chemical reaction (something new is being formed) |
| Physical Property or Physical Change are indicated when... | Phase change or the physical nature of the substance has changed (color, texture...) |
| Define an atom. | the smallest particle of an element that has the properties of that element |
| Define an element. | A substance made up of all the same atoms (found on periodic table) |
| Define molecule. | A substance made of two or more atoms chemically bonded together |
| Define compound. | A substance made of two or more different kinds of atoms that are chemically bonded together |
| Define solution. | A mixture in which a solid has dissolved in |
| Define mixture. | A collection of substances that are NOT bonded together |
| Be able to identify gases, liquids and solids. |