click below
click below
Normal Size Small Size show me how
Semester Science
Semester Exam Study Guide
| Question | Answer |
|---|---|
| ______ Are formed by losing electrons | Cations |
| The ending, or suffix, used for the names of negative ions formed when atoms gain electrons is..? | -Ide |
| Atoms bond with eachother by _____ electrons | Gaining, losing. and sharing |
| What type of bonds are present in table sugar, C12H22O11? | Covalent bonds |
| _____ Occurs between atoms that share electrons | Covalent bonding |
| When _____ are formed, electrons transfer between atoms | Ionic bonds |
| According to Rutherford, what was in the center of an atom? | A nucleus |
| In 1897, the British scientist, J.J. Thomson, discovered these negatively charged particles called? | Electrons |
| Flourine is a member of which family? | Halogens |
| Where on the Periodic Table of Elements are the noble gases found? | The last column on the right |
| The elements separated from the others on the periodic table of elements are called? | The rare earth elements |
| The elements in families #3-12 on the periodic table of elements are known as? | Transition metals |
| On the Periodic Table of Elements, calcium is a member of which family? | Alkaline earth metals |
| On the Periodic Table of Elements, where are the metals located? | To the left of the zig zag line |
| Non-metals are located where on the periodic table? | To the right of the zig zag line |
| Isotopes have a different number of..? | Neutrons |
| Each vertical column on the periodic table is called a(an)? | Group |
| The horizontal row on the periodic table is called..? | Period |
| What is true of a heterogeneous mixture? | It composes of components that aren't uniform, or they have localized regions that all have different properties. |
| Density is a ratio of? | Mass/Volume |
| A meniscus is? | Is formed when a liquid is in a tube |
| A measure of how much pulling or tension a material can withstand before breaking is | Tensile strength |
| When compared to a high viscosity liquid, a liquid with low viscosity: | Is easier to pour |
| List the phases of water in order, from the slowest molecule movement to the fastest | Solid-Liquid-Gas |
| Evaporation occurs when..? | A liquid changes to a gas |
| Condensation occurs when..? | A gas changes to a liquid |
| When you eat a piece of fruit, the process of digestion involves | Physical and chemical change |
| These numbers are written in when balancing equations | Coefficients |
| The solid formed during a chemical reaction between 2 liquids | Precipitate |
| Rust forming on a nail is an example of a ____ change | Chemical |
| In this type of reaction, a single element switches places with another element | Single replacement |
| The Law of ________ ___ is demonstrated when chemical equations are balanced | Conservation of Matter |
| Chemical Property | -Ability to rust -reactivity -flammability |
| Physical Property | -Volume -mass Phase |
| Chemical change | -digesting food -baking cookies -bicycle chain rusts |
| Physical change | -cutting hair |
| How many electrons does the 1st, 2nd, 3rd, and 4th orbitals hold? | 2, 6, 10, 14 |
| Solve: __Al + __ O2 -> __Al2O3, and determine if its a Single Replacement, Double Replacement, Synthesis, Decomposition | 4, 3, 2 and its a Synthesis |
| How many electrons does the 1st, 2nd, 3rd, and 4th shells hold? | 2, 8, 18, 32 |
| How do you find the number of neutrons? | Atomic mass - atomic number |
| How do you find the mass of an object? | Density x Volume |
| What is the lightest in an atom? | The electron, it has a mass of 9.1 x 10-28 grams |
| what weighs the most in an atom? | The nucleus |
| Subatomic particle | Smaller than or occurring within an atom |
| What is the zig-zag called on the periodic table? | SemiConductors |
| Who made the Periodic Table? | Dmitri Mendeleev |