Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
1 Ch - Phy Sci M 4A
Apologia Physical Science Module 4A
| Question | Answer |
|---|---|
| chemical formula | a notation indicating the elements in a compound & the ratios of the atoms of each element |
| reactants | substances that undergo a chemical change |
| products | new substances formed as a result of a chemical cahnge |
| chemical equation | the way scientists summarize a chemical change; a representation of a chemical reaction using chemical formulas for the reactants and the products |
| coefficients | #s that appear before a formula in a chemical equation to show how many atoms or molecules of each reactant or product are involved in the reaction |
| A chemical equation must be balanced to show that | mass is conserved during a reaction. |
| When balancing equations, you must never | change a subscript in the formula. |
| The only way to adjust the number of atoms of molecules is to use | coefficients. |
| The most stable electron configuration for atoms is when their highest energy level has a full set of | electrons. |
| chemical bond | a force of attraction between atoms or groups of atoms |
| ion | an atom or a group of atoms that has a positive or negative charge |
| cation | a positive ion, an atom with a positive charge; named by simply using the element name followed by the word ion, such as sodium ion |
| anion | a negative ion, an atom with a negative charge; named using the first part of the element name plus -ide. |
| The formation of ions requires | the TRANSFER of electrons between atoms. |
| ionic bond | a chemical bond formed between oppositely charged ions |
| Ionic compounds are formed between | cations and anions. |
| electron dot diagram | a model of the atom in which each dot represents a valence electron |
| covalent bonds | a chemical bond in which two atoms SHARE one or more pairs of valence electrons |
| Covalent bonds form between atoms of nonmetals when | they share valence electrons. |
| Groups 1A, 2A, 3A, and 7A transfer electrons to | form ionic bonds and make ionic compounds. |
| Groups 4A, 5A, and 6A tend to | share electrons with other atoms. |
| Shared electrons travel around | both nuclei. |
| double bond | when 2 atoms share 2 pairs of electrons |
| triple bond | when 3 pairs of electrons are shared |
| Elements on the right side of the periodic table generally have | a greater attraction for electrons than elements on the left side. |
| Elements at the top of the group | generally have a greater attraction for electrons than the elements at the bottom of a group. |
| polar covalent bond | a covalent bond in which the electrons are not shared equally |
| polar molecule | a molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared |
| linear shape | when atoms form a straight line in their molecule |
| polarity | having opposite charges within the same substance |
| nonpolar molecule | when the pull on electrons is equal from both sides and they cancel each other out |
| All polar compounds will contain polar bonds, but | not all compounds that contain polar bonds are polar compounds. |
Created by:
MrsHough
Popular Physical Science sets