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Periodic Table
Chemistry modern periodic table
| Question | Answer |
|---|---|
| who created hte periodic table and how did this person organize the elements? elements in colomns had what in common? what did he do for undiscovered elements? | Dimitri Mendeleev; in order of increasing atomic mass; similar properties; left empty spaces |
| how is the modern periodic table organized | by increasing atomic number |
| what is another name for columns? how are they numbered? | families or groups; 1-8 a and 1-8 b |
| what is a group of columns called and why? B? | representative elements bc they posses a wide range of chemical and physical properties; transition elements |
| what are rows across the periodic table called | periods |
| what are the 3 major classifications of elements? | metals, nonmetals, and metalloids |
| classification of elements that are generally shiny when they are smooth clean, solid at room temperature, and good conductors of heat and electricity; usually ductile and mallable | metals |
| means can be drawn into wires; this means can be hammered into sheets | ductile; mallable |
| what are group 1a elements called, except which element? describe reactivity. what are group 2a elements called and decribe reactivity | alkali metals except for hydrogen and are most reactive metals; alkaline earth metals and also very reactive |
| what are the most reactive metals? | group 1a or alkali metals |
| what does group b consist of? | transition and innter transition metals |
| these metals are the lantahanide and actinide series | inner transition metals |
| where are nonmetals in the periodic table? what the highly reactive nonmetals? what are the two types of nonmetals | upper right side; halogens (group 7a) ; halogens and noble gases |
| this classification of elemetns is generally gsaes or brittle, dull looking solids and are poor conductors of heat and electricity | nonmetals |
| these nonmetals are the very far right of the periodic table and are extremely unreactive | noble gases |
| this classification of elements have both physical and chemical properties of both metals and nonmetals | metalloids |
| where are metalloids found on the periodic table? what are the two most imortant metalloids that are used in making computer chips and solar cells | in the section between the metlas and nonmetals along the imaginary stair-step that separates them; silicon and germanium |
| name of elements in groups 3-12 | transition metals |
| what are the properties of metals and where are they located on the periodic table? | shiny (have luster), conductors of electricity and heat, are malleable and ductile, tend to be solid at room temperature, form cations; on the left side of the periodic table including the s and d block |
| what are the properties of nonmetals and where are they located on the periodic table? | don't conduct heat or electricity, can be solid liquid or gas, are brittle, and form anions; p block |
| what kind of ions do metals form? nonmetals? how do each form? what happens to the size of the atom as it changes into an ion? | cation; anion; cation by loosing electrons and anion by gaining electrons; for cation the atoms get smaller bc they are loosing electrons but for anions the atom gets larger bc they are gaining electrons. |
| this is the measure of the ability of an element to gain electrons and what element has the greatest ability? | electronegativity; flourine |
| what are the trends of electronegativity? | from left to right it increases as the nucleus gets stronger; from top to bottom it gets bigger and bigger |
| if your given a pair of elements and the queestion ask whihc of the following pairs of elements has similar properties which ones do you pick? | the ones in the same group (column) |
| what is the electron configuration for the groups on the periodic table? | group 1- s1; 2- s2; 3- s2p1; 4-s2p2; 5- s2p3; 6-s2p4; 7- s2p5; 8- s2p6 |
| this is the amount of energy required to remove an electron | ionization energy |
| explain ionization energy trends | from top to bottom it decreases meaning the likelihood of removing an electron decreases and from left to right it increases meaning the likelihood to remove electrons increases |
| what is the name for group 1? group 2? group 7? group 8? | alkali metals; alkaline earth metals; halogens; noble gases |
Created by:
pokemongo2017