Chap 5 chem vocab Word Scramble
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Term | Definition |
Periodic law | the physical and chemical properties of the elements in order of their atomic numbers |
Periodic table | an arrangement of elements in order of their atomic numbers so that elements in order of their atomic numbers so that elements with similar properties fall in the same column or group |
Lathanides | group 14 elements from 48 to 71 |
actinides | 14 elements from 90-103 |
Alkali Metals | group 1 (lithium, sodium, potassium, rubium, censium and francium) |
Transition elements | d-block elements, metals with typical metallic properties |
main group elements | p-block elements together with the s-block p-block |
Periodicity | Repeating properties of elements |
noble gases | group 18 |
Periods | rows in the periodic table, determined by the number of electrons that can occupy the sublevels being filled in that period |
Blocks | there are 4 blocks on the periodic table s,p,d,and f blocks, determined whether s,p,d, or f is being filled by successive elements of that block |
main-group elements | the p-block elements together with the s-block elements |
halogens | group 17, 7 valence electrons |
Alkaline-earth metals | group 2 |
valence electrons | electrons available to be lost, gained, or shared in the formation of compounds |
atomic radius | one-half the distance between the nuclei of idnetical atoms that are bonded together |
Electronegativity | The measure of the ability of an atom in a chemical compound to attract electrons from another atom |
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