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families of elements
term | definiton |
---|---|
Alkali metals | they are in group 7 reactive they are found in outer shell they are positive could explode in h2o |
Alkali earth metals | soft metals reactive group 6 found in group 2 2 value electrons as alkali metals |
Halogens | group 7 7 value electrons most reactive to non metals |
inert nobel gases | group 8 8 value electrons non reactive nown for their use in lighter |
valance electrons | group1 reactive with non metals very reactive with h2o all metals 1 valance electron li,na,rb,cs,r make the families |
compounds | chemically, combines atom, accures through valance electrons |
mixtures | mollecuels are not combined ex salt pepper not combined |
molecule vs atom | molecule,two of more atoms together . atom single |