A metalloid is a chemical element that exhibits the properties of both metals and nonmetals. Since they are specific enough to be either of these classifications, they are called metalloids. Some examples include boron, silicon, and germanium.
no chlorine is a non-metal
No silicon is a metaliod
phosphorus a nonmetal
Sodium is a metal (an alkali metal).
Element 117 would most likely be a metalloid.
Boron is a only non metal in group 13 elements.
It's a metal. More information about it is available on its page on wikipedia.
Roentgenium has atomic number 111, and is a transition element, which means it is a metal.
It is a Metaliod
Tin is a metal because it is located under a column containing metals as well as being electrically conductive.
Elements on the left side of periodic table are metals. The right side elements are non metals and the zigzag line constitutes metalloids.
Sodium is a metal.Sodium is in group 1, called the alkali metals. The metallic character of elements decreases from left to right across a period, and increases down a group.
The 8 most common elements in Earth's crust (by mass): 46.6% Oxygen (O) 27.7% Silicon (Si) 8.1% Aluminum (Al) 5.0% Iron (Fe) 3.6% Calcium (Ca) 2.8% Sodium (Na) 2.6% Potassium (K) 2.1% Magnesium (Mg) Therefore, the most common metallic elements in the Earth's crust would be Silicon and aluminum. (Note that aluminum is a metal, but silicon is considered to be a metaliod -- not to be confused with Silicone which is a synthetic polymer.)