What values did the greeks want their art and architecture to reflect?

An atom of element a has 73 protons. what would the element's atomic number be?

24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. what is 18-karat gold considered a mixture rather than a pure substance? a) it has a variable composition of other elements and minerals. b) its color is different than pure gold. c) the gold atoms are not arranged in a repeating pattern. d) it can be melted and transformed into a different substance.

Does manufacturing in the midwest affect the nations economy