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Science Quiz
Science quiz 5th chapter
| Term | Definition |
|---|---|
| What gives elements in a family or group similar properties? | The same number of electrons in their outer energy level. |
| What is not true about the alkali metals? | They are usually stored in water |
| Metals that share both physical and chemical properties are called? | Alkali Metals |
| Atoms of_______________have two outer-level electrons. | Alkaline-earth metals |
| What are 2 products made from calcium compounds? | Cement and chalk |
| In what way does calcium help you? | It gives you muscle and makes you strong and healthy. |
| Name 2 alkaline-earth metals besides calcium? | Magnesium and radium |
| Metals that are less reactive than alkali metals and alkaline-earth metals are called..... | Transition metals |
| How is mercury different from other transition metals? | Mercury is liquid at room temperature |
| Two rows of transition metals are placed at the bottom of the periodic table to save space. Elements in the first row are called________. Elements in the second row are called ______ | Lanthanides and Actinides |
| Which lanthanide forms a compound that enables you to see red on a computer screen? | Europium |
| Which actinide is used in some smoke detectors? | Americium |
| What are some of the uses of aluminum? | They are used to make aircraft parts, automobile parts, foil, cans, and siding |
| The Metalloids_____and______, both in Group 14, are used to make computer chips. | Silicon and Germanium |
| What are three compounds of carbon that are necessary for living things on Earth? | Proteins, fats, and carbs |
| The hardest material known is ______ | Diamond |
| What are some uses of diamond? | Cutting tools such as saws, drills, and files. |
| What form of carbon is used as pigment? | Soot |
| Nitrogen is a ______ at room temperature | Gas |
| Each element in the Nitrogen Group has____ electrons in the outer level. | 5 |
| Nitrogen from the air can react with what element to make ammonia for fertilizer? | Hydrogen |
| How is oxygen different from the other four elements in Group 16? | All but oxygen are gases at room temperature. |
| The element______can be found as a yellow solid in nature and its used to make sulfuric acid. | Sulfur |
| Why is oxygen important? | Oxygen is important because it makes up about 20% of our air and we need it to live. |
| The atoms of ________ need to gain only one electron to have complete outer level. | Halogens |
| Halogens combine with most metal to form _____, such as ____________. | salts and sodium chloride |
| How does chlorinating water help protect people? | It keeps people away from diseases in chlorinated water. |
| The atoms of_________have a full set of electrons in their outer level. | Noble Gases |
| The low______of helium makes blimps and weather balloons float. | Density |
| Which arrangement of elements did Mendeleev find produced and repeating pattern of properties? | By increasing atomic mass |
| When something occurs or repeats at regular intervals, it is called_________. | Periodic |
| Mendeleev's table, which shows elements' properties following a pattern that repeats every seven elements, is called the _________ | Periodic table of the elements |
| How did Moseley solve the problem of the elements that did not fit the pattern according tot their properties? | He determined the elements' atomic number and then arranged them by atomic number. |
| When the repeating chemical and physical properties of elements change periodically with the elements' atomic numbers, it is called the_________ | Periodic law |
| What information is not included in each square of the periodic table? | Melting point |
| How can you tell on the periodic table that carbon is a solid at room temperature? | The color of the chemical symbol indicates that physical state at room temperature. Carbon is a solid. |
| Elements are classifies as metals, nonmetals ore metalloids according to their____________. | Properties |
| The number____of in the outer energy level of an atom helps determined which category an element belongs in. | Electrons |
| How can the zigzag line on the periodic table help you? | The zigzag line reminds you where the metals, nonmetals and metalloids are. |
| Most elements are_____, which can be found to the left zigzag line on the periodic table. | Metals |
| Most metals are _______, which means that they can be drawn into thin wires. | Ductile |
| Most metals are_____________ at room temperature. | Solid |
| Most metals are malleable. What does this mean? | Means that they can be flattened with a hammer and will not shatter |
| What metal is flattened into sheets that are made into cans and foil? | Aluminum |
| What elements are found to the right of the zigzag line on the periodic table? | Metalloids and Nonmetals |
| Semiconductors, also called_______, are the elements that border the zigzag line on the periodic table. | Metalloids |
| Which elements often share properties? | those in a group |
| the physical and chemical properties of the elements change.... | across each period |
| For most elements, the __________ has one or two letters with the first letter always capitalized. | Chemical Symbol |
| Horizontal rows of elements on the periodic table are called__________. | Period |
| Vertical columns of elements on the periodic table are called_______________or_________________ | Groups or family |
| Some Elements, such as _____________, are named after scientists. Others, such as___________, are named after places | Mendelevium californium |
Created by:
sophiacuttill
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