Multiple Choice
Which gaseous element is commonly used in street lights to produce a bright yellow-orange glow?
5. Molecules and Compounds
Periodic Table: Elemental Forms (Simplified)
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Which of the following is a representative element that is not diatomic in the 4th period that is a metalloid?
A
Silicon
B
Tin
C
Gallium
D
Chlorine
E
Germanium
Verified step by step guidance1
Understand the term 'representative element': These are elements found in groups 1, 2, and 13-18 of the periodic table. They are also known as main group elements.
Identify the term 'diatomic': Diatomic molecules consist of two atoms. Common diatomic elements include hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine.
Locate the 4th period on the periodic table: The 4th period includes elements from potassium (K) to krypton (Kr).
Define 'metalloid': Metalloids have properties intermediate between metals and nonmetals. Common metalloids include boron, silicon, germanium, arsenic, antimony, and tellurium.
Identify Germanium: Germanium is a metalloid located in the 4th period of the periodic table. It is not diatomic and is a representative element, fitting all the criteria given in the problem.
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