Atomic Makeup Isotopes Worksheet Page 2

Naturally occurring iron has four isotopes. The masses and % abundance are given in the table. What is the atomic mass of

iron?

mass/amu

% abundance

53.9396

5.82

55.9349

91.66

56.9354

2.19

57.9333

0.33

In the proper position on the following skeletal periodic table, write the symbol and atomic number for any element that

does not directly come from the English name for the element. That is, Li comes from lithium, so don’t write it, but Sb

does not come from antimony, so write it in period 5, group 15. Write the name outside of the table, but near the symbol.

Show the period and group at the appropriate place on the table for any entries.

0 votes

Parent category: Education