Last modified: Fri 09/05/2014 09:05:41 am ACA Page

Oklahoma State University

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Answer all of the questions below. If you do not know an answer enter CNA. However, it will help me the most if you answer each question with your best intuition/idea about what would be a reasonable answer.


First Name:

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1. Complete the following table by entering the number of protons, electrons and neutrons for the two isotopes listed; (Here is a cool periodic table that is on the Web.)

Isotope

Protons

Electrons

Neutrons

16O

95Mo

2. One of the cations listed in Table 2.4 is Mo4+. Complete the following table for the isotope of molybdenum with a 4+ charge.

Isotope

Protons

Electrons

Neutrons

95Mo4+

3. For each of the following indicate whether the element is a metal, or a nonmetal.

a) hydrogen

b) lead

c) titanium

d) phosphorus

4. The formula for one kind of sugar is C6H12O6.

a) How many carbon atoms in this sugar?

b)How many hydrogen atoms in this sugar?

c) How many oxygen atoms in this sugar?

d) How many oxygen molecules in this sugar?

5. Only two istopes of copper are known to exist, 63Cu has a isotopic mass of 62.9295989 u and 65Cu has a isotopic mass of 64.9277929 u. The percent abundance for 63Cu is 69.17% and for 65Cu the percent abundance is 30.83%. Calculate the relative weighted average atomic weigh, in atomic mass units (u) for the element copper.

u

6. Is there anything about the questions that you feel you do not understand? List your concerns/questions.

7. If there is one question you would like to have answered in lecture, what would that question be?