part of one row of the periodic table is shown. which elements atoms have the greatest average number of…

Explanation:

Step1: Recall the formula for number of neutrons

The number of neutrons (N) in an atom is given by (N = A - Z), where (A) is the atomic mass (average atomic mass from the periodic table) and (Z) is the atomic number (the integer in the box).

Step2: Calculate neutrons for Sn

For tin ((Sn)): (Z = 50), (A=118.71). Then (N_{Sn}=118.71 - 50=68.71)

Step3: Calculate neutrons for Sb

For antimony ((Sb)): (Z = 51), (A = 121.76). Then (N_{Sb}=121.76-51 = 70.76)

Step4: Calculate neutrons for Te

For tellurium ((Te)): (Z = 52), (A=127.60). Then (N_{Te}=127.60 - 52=75.6)

Step5: Calculate neutrons for I

For iodine ((I)): (Z = 53), (A = 126.90). Then (N_{I}=126.90-53=73.9)

Answer:

tellurium ((Te))