Copper is an element because it is made with copper ___ all the way through.

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

Which element would mostly likely have an electron affinity measuring closest to zero

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %