“cu” is a pair of letters the element we call “copper”.
the letter pair “cu” is not the name of an element; it’s a chemists use to represent it
a. chemical formula
b. name
c. symbol

Describe the interaction that occurs between two objects with the same electrical charge.

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?