15th Photohunt Theme 138: “Metal”
dmeemai on November 29th, 2008 File Under Meme, Tag, blogging, photography, photohunt
met.al: [met-l] noun, verb, -aled, -al.ing or (especially British) -alled, -al.ling. –noun
1. any of a class of elementary substances, as gold, silver, or copper, all of which are crystalline when solid and many of which are characterized by opacity, ductility, conductivity, and a unique luster when freshly fractured.
“You see metals every day. Aluminum foil is a metal. Gold and silver are metals. If someone asks you whether an element is a metal, metalloid, or non-metal and you don’t know the answer, guess that it’s a metal.”
I chose Chemistry 101 for this week’s theme, that of the purest state of metals categorized under the periodic table of elements. Anybody still remember this from Junior High? We had to memorize the entire table along with its atomic symbol, atomic number and its atomic mass- all 103 at that time (I think!). As of 2006, there are now 117 elements. Glad I’m past memorization and I can just google everything! Yay!
According to this photo:
“Chemical elements (comprising the metals and non-metals) are the building blocks of everything. The Sun and stars, the silicon chips in our computers, and all the cells in our bodies are collection of elements.”
It’s kinda hard to imagine that our bodies are made up of metals, isn’t it? It’s because when we think of metals- we think of hard objects, coins, copper, iron, tin, lead, nickel, cast irons, railroads, bridges, wires, sheet metals, brass, alloys, jewelries, gold and silver, etc!
What’s in our Bodies?
Calcium (Ca), Sodium (Na), Potassium (K), Iron (Fe), Magnesium (Mg), Zinc (Zn), Copper (Cu), Manganese (Mn) are just some of the major elements in the metals category found in our body and yes, even traces of Lithium (Li), Aluminum (Al), Silicon (Si) and Arsenic (As) in the metalloids category.
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