SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Silicon
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Gallium
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Arsenic
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Titanium
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Detailed explanation-1: -Arsenic is a chemical element which is placed in the 15th group and 4th period in the periodic table. Symbol of the arsenic element is As. It is a metalloid element with the atomic number 33.
Detailed explanation-2: -Group 4A (or IVA) of the periodic table includes the nonmetal carbon (C), the metalloids silicon (Si) and germanium (Ge), the metals tin (Sn) and lead (Pb), and the yet-unnamed artificially-produced element ununquadium (Uuq).
Detailed explanation-3: -Arsenic is neither a metal nor a non-metal but instead joins a select but rather ill defined group of elements called the metalloids. These are found in the periodic table along a diagonal line from Boron at the top left to round about polonium at the bottom right.
Detailed explanation-4: -Arsenic (atomic number, 33; relative atomic mass, 74.92) has chemical and physical properties intermediate between a metal and a non-metal, and is often referred to as a metalloid or semi-metal.
Detailed explanation-5: -The elements silicon, boron, arsenic, antimony, tellurium and polonium are metalloids.