PHYS 1415 Lab-11: Atomic Structure
Name: _________________________
1. Consider the following atoms: A - Chlorine, B – Oxygen, C – Iron, D – Aluminum.
Consult the periodic table and rank these atoms, from most to least, by their:
(a) Mass:
(b) Number of electrons:
(c) Number of protons:
2. Rank the number of shells of these atoms from most to least: A – Chlorine, B – Iodine, C – Fluorine, D – Bromine
3. Rank the mass of these molecules from most to least:
4. For each of the following, determine the number of protons, neutrons, and electrons:
Element
Chemical Symbol
Protons
Neutrons
Electrons
Antimony
Aluminum
Iron
Lead
Tin
Platinum
Potassium
Mercury
5. Determine the number of protons, neutrons, and electrons for each of the following:
Isotope
Protons
Neutrons
Electrons
Ca
on-12
Ca
on-14
Uranium-235
Uranium-238
Chlorine-35
Chlorine-37
6. Give the shell electron configuration
a) Argon
) Boron
c) Aluminum
d) Lithium
e) Phosphorus
7. How many electrons are in the outer most shell of each of the following?
(a) Ca
on: __________
(b) Magnesium: __________
(c) Sulfur: __________
(d) Sodium: __________
8. How many atoms are in a molecule of each of the following?
(a) Calcium Ca
onate CaCO3
(b) Glucose C6H12O6
(c) Calcium Phosphate Ca3(PO4)2
(d) Sulfuric Acid H2SO4
9. Give the prefe
ed names for:
a) CaBr2
) ZnSO4
c) KOH
d) AgNO3
e) IF7
f) Na3P
g) (NH4)3PO4
h) Ba3N2
i) Li2S
j) SO3
k) S2Cl2
l) Al2(CO3)3
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