1 1 2 points 241 Am 95 He He + ? Americium-241 (241 Am) radioisotope undergoes alpha emission according to the nuclear equation shown above. Identify the product isotope (represented as ?) in this process. 0 245BK 237 Np 245Np 237 BK O not enough information to determine 2 2 points 49 Mn -> 49 cr ? + During a certain radioactive emission process, 49 Mn produces 49Cr. What is the type of emission process that takes place here? O alpha emission beta emission not enough information to determine O positron emission 3 2 points What is the mass of 1.80 x 1024 atoms of sulfur (S) in grams? Hints: 1. What is the constant we use to convert between atoms and moles? 2. You are going to have to refer to the information about sulfur (S) in the periodic table at some point of this calculation. Type your answer... 4 2 points Which of the following statements is/are TRUE about the compound PbS2? Select all that apply The charge on Pb is +4 This is an ionic compound because Pb is a metal This compound must be named as lead(IV) sulfide This compound must be named as lead(II) sulfide The charge on Pb is +2 This compound must be named as lead disulfide 5 DIO 2 points How many moles of sodium (Na) are there in 52.8 g of sodium metal? Hint: 1. You are going to have to refer to the information about sodium (Na) in the periodic table at some point of this calculation. Type your