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

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table? atom p has an estimated zeff of 7 and is therefore to the left of atom q, which has a zeff of 6. atom p has an estimated zeff of 7 and is therefore to the right of atom q, which has a zeff of 6. atom p has an estimated zeff of 5 and is therefore below atom q, which has a zeff of 4. atom p has an estimated zeff of 5 and is therefore above atom q, which has a zeff of 4.