Does being creative in doing science mean that a science should make up? why?

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon