Question

5 using the periodic table, match each element to its proper classification.
statement | metals | metalloids | nonmetals
astatine (as) | | |
bromine | | |
carbon | | |
fluorine | | |
iron | | |
lead (pb) | | |
mercury (hg) | | |
silicon | | |
sodium | | |
xenon (xe) | | |

Explanation:

Step1: Recall Element Classifications

Metals: Typically shiny, good conductors (e.g., iron, lead, mercury, sodium).
Metalloids: Have properties of both (e.g., silicon, arsenic (note: astatine is At, As is arsenic; correction: astatine is At, As is metalloid)).
Nonmetals: Poor conductors (e.g., bromine, carbon, fluorine, xenon, astatine (At)).

Step2: Classify Each Element

• Astatine (At, note: typo in Q as As; As is arsenic, metalloid; At is nonmetal). Assume Q has typo, but if As (arsenic): Metalloids.
• Bromine: Nonmetals (halogen, nonmetal).
• Carbon: Nonmetals (nonmetal, organic basis).
• Fluorine: Nonmetals (halogen, nonmetal).
• Iron: Metals (transition metal).
• Lead (Pb): Metals (post - transition metal).
• Mercury (Hg): Metals (liquid metal, transition).
• Silicon: Metalloids (semiconductor, metalloid).
• Sodium: Metals (alkali metal).
• Xenon (Xe): Nonmetals (noble gas, nonmetal).

Answer:

(Corrected for Astatine Typo, As = Arsenic):

Statement	Metals	Metalloids	Nonmetals
bromine	∘	∘	⚫
carbon	∘	∘	⚫
fluorine	∘	∘	⚫
iron	⚫	∘	∘
lead (Pb)	⚫	∘	∘
mercury (Hg)	⚫	∘	∘
silicon	∘	⚫	∘
sodium	⚫	∘	∘
xenon (Xe)	∘	∘	⚫

(Note: If astatine is At (correct symbol), At is nonmetal: classify At as Nonmetals, As (arsenic) as Metalloids.)