Which mineral would most likely be found in a necklace

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false