Your Element chakar is your Personality/DNA chakar (ie Naruto being Wind) allows you to do high level Jutsus thats what the affinity means being able to do high level element jutsu...
Kazaku(sorry wrong spelling) had 5 hearts and dose 5 had element DNA which gave Kazaku the power to do high level jutsu's...
Now as for Kakashi whom only has lighting... he can do the highest level of lighting jutsu... BUT he can also use all element as he copied them... but not high level jutsu's
Fire(Katon),Earth(Doton),Water(Suiton),Lightning(Raiton),Wind(Fuuton) there's only five.
actually there are six because jirayia when he was battling pein said that the rinnengan allowed the user to use all six types of elemental chakra(in the manga) i'm not sure what the last one is but yamato did tell kakashi that explaining light and dark(yin and yan)chakra would take a long time before naruto understood it so I think light and dark are one type that the nara clan uses(shadows)and the other five are the ones mentioned above.
Based on which jutsu the ninja uses, the type and amount of chakra will be different as would the elements you would be to employ. The five main elemental types are also the names for the Five Great Shinobi Nations: Fire, Wind, Lightning, Earth and Water. Each ninja has the potential to better utilize one of these styles and potentially more. A sixth element has been mentioned but has not been revealed. A special elemental detecting paper is used to determine ones type. When the ninja imbues the paper with a portion of their chakra, the paper will alter to reveal one's type. Fire = burn, water = wet, earth = turn to dust, lightning = crumple, wind = cut in half.
The strengths and weaknesses of elemental chakras are as follows: Fire is strong against Wind, Wind is strong against Lightning, Lightning is strong against Earth, Earth is strong against Water, and Water is strong against Fire. Chakra types such as wood and ice are the result of combining different elemental chakra types, such as the Kekkei Genkais Wood Release, of the First Hokage, Lava Release, of the Four-Tailed Jinchuuriki and the Ice Release, of Haku.
this was from
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