Chemistry Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| matter | anything that has volume and mass
🗑
|
||||
| atom | the smallest component of an element having the chemical properties of the element
🗑
|
||||
| nucleus | the positively charged dense center of an atom; contains protons and neutrons
🗑
|
||||
| electron cloud | a region around the nucleus of an atom where electrons are likely to be found, negatively changed
🗑
|
||||
| electrical charge | a property of matter that tells whether something has a positive or negative charge
🗑
|
||||
| proton | a subatomic particle that has a positive charge and that is found in the nucleus of an atom
🗑
|
||||
| neutron | a subatomic particle that has no charge and that is found in the nucleus of an atom
🗑
|
||||
| electron | a subatomic particle that has a negative charge and is located in the electron cloud
🗑
|
||||
| subatomic particles | particles inside an atom (protons, neutrons, electrons)
🗑
|
||||
| chemical formula | a combination of chemical symbols and numbers to represent a substance
🗑
|
||||
| balanced equation | chemical equation with the same number of atoms of each element on both sides of the equation
🗑
|
||||
| atomic mass | Total mass of the protons and neutrons in an atom, measured in atomic mass units
🗑
|
||||
| atomic number | the number of protons in the nucleus of an atom
🗑
|
||||
| valence electrons | electrons on the outermost energy level of an atom
🗑
|
||||
| energy level | the different areas for an electron in an atom
🗑
|
||||
| net charge | sum of the positive and negative charges
🗑
|
||||
| property | a characteristic used to describe matter
🗑
|
||||
| reactivity | the property that describes how readily a substance combines chemically with other substances
🗑
|
||||
| periodic table of elements | a table with elements organized in order of increasing atomic number, and grouped such that elements with similar properties are in vertical columns.
🗑
|
||||
| groups | vertical columns or families of elements on the periodic table; the elements in these have similar properties because they have the same number of valence electrons
🗑
|
||||
| periods | the horizontal rows of elements in the periodic table; the elements in these have the same number of energy levels
🗑
|
||||
| metalloids | elements that have characteristics of metals and nonmetals
🗑
|
||||
| metals | elements that are malleable, have a shiny or metallic luster, are good conductors of heat and electricity and have a high melting point
🗑
|
||||
| nonmetals | an element that is brittle, dull, tends to be a poor conductor of heat and electrictricity and a low melting point
🗑
|
||||
| noble gases | the elements of group 18 of the periodic table; the least reactive group
🗑
|
||||
| electron shell | the arrangement of electrons around an atom's nucleus according to the energy they contain; electrons with the least energy are in the shell closest to the nucleus, and those with more are in shells farther from the nucleus
🗑
|
||||
| element | a substance that cannot be broken down into simpler substances
🗑
|
||||
| atomic symbol | one or two letters that represent the name of an element; the first letter is always capitalized and other letters are always lowercase
🗑
|
||||
| alkaline earth metals | Any metal in group 2A of the periodic table
🗑
|
||||
| alkali metals | the elements located in group 1 of the periodic table; most reactive group on the periodic table
🗑
|
||||
| halogens | The elements of Group 17, most reactive group of nonmetals on the periodic table
🗑
|
||||
| subscript | number placed to the lower right of a chemical symbol to indicate the number of atoms of the element in the compound
🗑
|
||||
| chemical formula | a combination of chemical symbols and numbers to represent a substance
🗑
|
||||
| chemical reaction | A change in which one or more substances are converted into different substances
🗑
|
||||
| chemical equation | a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
🗑
|
||||
| coefficient | A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
🗑
|
||||
| reactants | the starting materials in a chemical reaction; located to the left of the arrow (what you start out with)
🗑
|
||||
| products | the substances that are formed by the chemical reaction; located to the right of the arrow (what you end up with)
🗑
|
||||
| law of conservation of mass | the law that states that mass cannot be created or destroyed
🗑
|
||||
| mass | the amount of matter in an object
🗑
|
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.
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.
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.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
jistre
Popular Chemistry sets