How many atoms of gold are in 1 gram of gold?

Can someone me with 1 to 4 plz. fast

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.