phosphorus.
2) The four properties that our group tested in the lab were appearance, electric conductivity, the crush test, and the elements reactivity with acid. Appearance is a physical property, because the elements appearance is a property that you can see with your eyes. Also, the crush test is a physical property to see if the element is brittle, or malleable, which means it's ability to bend or break. It’s a physical property because if or if not the element breaks has nothing to do with any chemical properties inside of the element. The element’s reactivity to acid is a chemical property, this is because the acid is reacting with all of the atoms inside the element, and so it’s reacting with the element and and creating new bonds of atoms.
3A) What’s unique about elements that are Metalloids is that they are not full metals, or none metals, they are “Semimetals”, which is sometimes used in place of the word Metalloids.
3B) The only metalloid we tested in our lab experiment was Silicon (Si)
3B) The metalloids are Boron (B), Silicon (Si), Geranium (Ge), Arsenic (As), Antimony (Sb), Tellurium (Te), and Polonium (Po).
4A) The trend that appears as you read the Periodic Table from left the right in terms of Metallic Character is that as the table moves to the right, the elements become less and less Metallic. Whereas if the table moved the opposite way, the elements would become more metallic.
4B) The trend that appears as you read the Periodic Table From top to bottoms in terms of Metallic Character is that as the table goes down, there are most Metallic elements in each of the rows.
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