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Answer
6
Explanation
To determine the period of Lead (Pb) on the periodic table, we need to look at its atomic number, which is 82. The period number corresponds to the energy level of the outermost electrons. Since Lead (Pb) has an atomic number of 82, it is located in the 6th period because the outermost electrons of lead are filling the 6th energy level. Lead (Pb) is a heavy metal with a bluish-white color when freshly cut, but tarnishes to a dull gray upon exposure to air. It has been used in various applications, including construction, batteries, and radiation shielding.
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