Which of the following elements is an example of a metalloid?

silicon

sodium

silver

platinum

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.

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

What reaction is taking place? 02 + c3h8 = h20 + co2