This week, we reviewed and/or refreshed our knowledge on the basics of chemistry. The world and everything in it is made of atoms, which in turn form elements. For this discussion post, you will be picking an element from the periodic table
based on your last name
, and creating an informative post about that element. To find your element of choice, see below:
Last names starting with A-D: any element from atomic number 1-15
Last names starting with E-I: any element from atomic number 16-30
Last names starting with J-M: any element from atomic number 31-45
Last names starting with N-P: any element from atomic number 46-60
Last names starting with Q-S: any element from atomic number 61-75
Last names starting with T-V: any element from atomic number 76 -90
Last names starting with W-Z: any element from atomic number 91 – 102
In your discussion post, include the following information:
Your element of choice (don’t just pick the very first number in your assigned list! Find one that speaks to you!)
The basics of your element – name, atomic number, atomic weight, amount of protons, neutrons, electrons
How many electron shells your element has, as well as how many electrons are in its valence shell
Where/when was it discovered?
Does it occur naturally in nature, (if so, where?) or is it synthetically made?
2-3 interesting facts about your element – one fact must be on the usage of the element – do we use it in medicine, as a building component, in jewelry, etc.
Chemistry Intro Worksheet
In the chart below write the three subatomic particles. In the second column write the charge on
the particle. In the third column, state the location of the subatomic particle within the atom. 3pts
Subatomic Particle Name
Subatomic particle charge
Subatomic particle location
The atomic number equals the number of _____________. 1pt
The mass number equals the number of _____________ plus the number of _____________. 1pt
The number of protons also equals the number of _____________ in an atom. 1pt
Answer the following questions based on the element below (round the weight of phosphorus
to 31):
What is the atomic number of phosphorus? ________ 0.5pt
What is the atomic weight of phosphorus? _________0.5pt
How many protons does phosphorus contain?
_________0.5pt
How many neutrons does phosphorus contain?
________0.5pt
How many electrons does phosphorus contain? _________0.5pt
How many electron shells does phosphorus contain? ________0.5pt
How many electrons are in the valence shell? _______0.5pt
If you found an isotope of phosphorus, what would be different about it? _____________ 0.5pt
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