Unit 4 Vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Atomic Mass | Average mass of one atom of an element
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| Periodic Table | A chart where all elements are organized into periods and groups according to their properties
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| Period | A row of elelments in the periodic table arranged by atomic number
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| Chemical Symbol | One or two-letter code that stands for an element
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| Group | Column of elements in the periodic table, which have certain properties in common
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| Matter | Anything that has mass and takes up space
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| Element | Substances that are the building block of matter
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| Compound | Matter made of two or more elements
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| Atom | Smallest particle
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| Electron | Negatively charged particle, found outside nucleus of atom
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| Nucleus | Center of an atom
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| Proton | Positively charged particle, in nucleus of atom
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| Neutron | Neutral charge, in nucleus of atom
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| Energy Level | The amount of evergy carried by an electron in a atom
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| Isotope | Atoms of the some element with different numbers of neutrons in the nucleus of atom
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| Mass Number | The sum of protons and neutrons in the nucleus of a atom
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| Atomic Number | Number of protons in the nucleus of one atom of an element
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| Metal | A class of elements characerized by physical properties
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| Malleable | A term used to describe material that can be pounded into shapes
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| Ductile | A term used to describe material that can be pulled out into a long wire
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| Conductivity | The ability of an abject to transfer heat or electricity to another object
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| Reactivity | The ease and speed with ehich an element combines, or reacts with other elements and compounds
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| Corrosion | The gradual wearing away of a metal element due to a chemical reaction
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| Alkali Metal | An element in Group 1 of the periodic table
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| Alkali Earth Metal | An element in Group 2 of the periodic table
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| Transition Metal | One of the elements in Group 3 through 12 of the periodic table
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| Alloy | A mixture of two or more elements, one of which is metal
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| Nonmetal | An element that lacks most of the properties of a metal
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| Diatomic Molecule | A molecule consisting of two atoms
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| Halogen | An element found in Group 17 of the periodic table
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| Nobel Gas | An element in Group 18 of the periodic table
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| Metaloid | An element that has come characteristics of both metals and nonmetals
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| Semiconductor | A substance that can conduct electricity under some conditions
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Grey Gasai
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