Copper forms a substitutional solid solution with silver (known as sterling silver) where copper and silver exist in lattice point positions. If the densities of pure Cu and Ag are 8.96 and 10.49 g/cm3, respectively, compute the number of copper atoms required to create a 1 cm3 sterling silver alloy with 7.5 wt% copper.

Answer) by studying proton collisions hope this : )

Most elements have more than one naturally occurring isotope. as you learned previously, the atoms of those isotopes have the same atomic number (number of protons), making them belong to the same element, but they have different mass numbers (total number of protons and neutrons) giving them different atomic masses. so which mass is put on the periodic table for each element? is it the most common isotope’s mass? the heaviest mass? this activity will answer that question.

Answerall of the above good luck

Answersmallest whole-number ratio of the atoms