2. an element is a mixture of two isotopes. one isotope has an atomic mass of 34.969 amu and an
abundance of 64.88%. the other isotope has an atomic mass 36.966 amu. create a data table for this
element like the one shown in #1. calculate the average atomic mass of the element, and then use your
periodic table to identify the element.

The average atomic mass of an element is 35.67 amu and the unknown element will be chlorine.

Explanation:

Mass of isotope 1 = 34.969 amu

% abundance of isotope 1 = 64.88% =

Mass of isotope 2 =  36.966 amu

% abundance of isotope 2 = (100-64.88)% =

Formula used for average atomic mass of an element :

Therefore, the average atomic mass of an element is 35.67 amu and the unknown element will be chlorine.

d) physical means can be used to separate the components of air.

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada