The average atomic mass for germanium is 72.631 amu. If germanium occurred as a mixture of the two isotopes below, what would be the percent abundance of 73Ge in the mixture? mass of 70Ge = 69.924 amu

mass of 73Ge = 72.923 amu

Percent abundance of 73Ge in nature = %

The clouds are grey and ground is wet. a quantitative b qualitative

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.