011 10.0 points
there are three naturally occurring isotopes
of the hypothetical element hilarium hi,
4°hi, and 42 hi. the percentages of these
isotopes are the following:
hilarium
isotopes
39 hi
40 hi
consists of
d has an
following
sotope is
natural
abundance
25.8%
33.8%
40.4%
42 hi
because
is outer
you can assume that the atomic masses are
exactly equal to the mass number. calculate
the weight of “naturally” occurring hilarium
and report it as you would for any other nat-
urally occurring element.
answer in units of g/mol. your answer
must be within + 0.005%
ise the