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Phy Sci Unit C7+
Periodic table, bonding, acids and bases
| Question | Answer |
|---|---|
| Mendeleev created the first periodic table by arranging elements in order of increasing ____ ____. | atomic mass |
| In Mendeleev's periodic table, everything in a column has | similar properties |
| Where are metals on the periodic table? | left of the zigzag line |
| Metals have what properties? | shiny (luster), solids (all but Hg), ductile, malleable, and good conductors |
| Where are nonmetals on the periodic table | right of the zigzag line |
| Most elements on the periodic table are what state of matter | solids |
| Where are metalloids on the periodic table? | along the zigzag line |
| Nonmetals have what properties? | brittle solids and gases, non-conductors |
| Nuclear fusion created new elements inside what? | stars and supernova |
| On the periodic table on the wall, what color are gases | red |
| Metals are located | left to the zig zag line |
| Valence electrons are found where | farthest from the nucleus in the outer energy level |
| Elements in a row on the periodic table are in a _______ | period |
| Columns on the periodic table are called what? | family. groups |
| What information in the table indicates the number of protons in an atom | the elements atomic number |
| Family 1 is called what? | Alkali metals |
| Family 2 is called what? | Alkaline earth metals |
| Elements that share characteristics of both metals and nonmetals are called what? | metalloids |
| The modern periodic table is arranged by | atomic number |
| Family 17 is called what? | halogens |
| Family 18 is called what? | noble gases |
| Families 3-12 are called what? | transition metals |
| How many valence electrons for family 17 | 7 |
| Nonmetals are _______ conductors heat and electricity | poor |
| Which family is made of soft metals that react with water | Family 1 or the Alkali metals |
| 1800s who arranged the periodic table | Dmitri Mendeleev |
| Each chemical elements is given a specific ------- that usually consist of one or two letters | symbol |
| Metals are usually what state of matter? | solids |
| Chlorine is in family ___ and period ___ | 17 (halogens), 3 |
| Sodium is in family ___ and period ___ | 1 (alkali metals), 3 |
| Barium is in family ___ and period ___ | 2 (alkaline earth metals), 6 |
| How many valance electrons would go around the symbol for barium in the Lewis electron dot structure? | 2 |
| How many valance electrons do the noble gases have? | 8 (Except He has 2) |
| Because the noble gases have a full valance energy level, they are ______. | nonreactive |
| atoms with a charge are called what? | ions |
| In and ____ bond, one atom gives up electrons becoming positive, and another atoms gets those electrons becoming negative, then they are attracted by opposite charges. | ionic |
| Covalent bonds are formed by the ____ of electrons | sharing |
| Na and Cl form a(n) ___ bond to make NaCl (sodium chloride or table salt) | ionic (metal plus nonmetal) |
| C and O form a(n) ___ bond to make CO2 (carbon dioxide) | covalent (all nonmetals) |
| Ionic bonding involves the ____ of electrons | transfer |
| In a chemical formula the number of each element is show by what? | subscripts (small numbers following each element) |
| Bases are ionic compounds that release what ion into water? | OH- (hydroxide) |
| Acids are compounds that release what ion into water? | H+ (hydrogen ion) |
| These are corrosive, taste sour, and have a pH less that 7 | acids |
| These are corrosive, slippery, bitter, and have a pH over 7 | bases |
Created by:
tbrandt
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