The average atomic mass of the element has to be between The element is most likely (use periodic table)
60 and 65, copper
74 and 80, selenium
70 and 74, germanium

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?