3. Complete the following table for various isotopes and ions. Assume the atom is neutral when not noted with a difference in electrons and protons: # neutrons Element Manganese Sodium Bromine Yttrium Arsenic Actinium # of protons 25 35 # of electrons 10 36 30 12 45 Atomic # 39 Mass Number 89 75 227 Atomic Symbol
3. Complete the following table for various isotopes and ions. Assume the atom is neutral when not noted with a difference in electrons and protons: # neutrons Element Manganese Sodium Bromine Yttrium Arsenic Actinium # of protons 25 35 # of electrons 10 36 30 12 45 Atomic # 39 Mass Number 89 75 227 Atomic Symbol
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Atomic Structure
The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.
Shape of the D Orbital
Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.
Question
Please help with question 3
Transcribed Image Text:Chem 105 Online
Safety:
While these are regular store bought beans, these are NOT meant to be used in cooking as they were
handled in the laboratory setting and are deemed contaminated.
Procedure:
1. Determine the number of isotopes of Beanium based upon the appearance (size, color, etc.).
2. Sort the Beanium atoms into groups based on appearance. Each group represents a different
isotope.
3.
Count the total number of atoms of each isotope and record the result in the data table.
4. Using the individual amounts of beans, determine the total number of atoms in your sample and
record.
5. Determine the abundance of each isotope using the formula and record the results.
Number of Beans of Isotope #
a. Abundance =
Total Number of Beans
6.
Using a balance, measure the total mass of all the atoms of each isotope individually (ie take
the mass of all of the same bean).
7. Record the total mass in the data table.
8.
Find the typical mass of ONE atom of each isotope by dividing the total mass by the number of
atoms. Record the result in the data table,
9. Multiply the abundance (as a decimal) of each isotope by its mass to find the product and
record the result in the last column of the data table.
10. Add the products in the last column to find the "atomic mass" of the element beanium.
Prelab:
1. What are the main particles that make up the atom.
2. What is the mass number of an isotope and how does that differ from the mass on the periodic
table?
3. Complete the following table for various isotopes and ions. Assume the atom is neutral when not
noted with a difference in electrons and protons:
#neutrons
Element
Manganese
# of
protons
25
# of
electrons
Sodium
Bromine
Yttrium
Arsenic
Actinium
4. Write the beta decay of Rn-222.
5. Write the alpha decay of Np-237.
35
10
36
30
12
45
Atomic #
39
Mass
Number
89
75
227
Atomic
Symbol
Expert Solution
Step 1
In a neutral atom, the number of protons and electrons is equal. The mass number is the sum of the number of protons and the number of neutrons. The atomic number of an atom is equal to the number of protons present in it.
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