$(1)$ Half-life of $^{14}C$ is $...........$
$(2)$ $..........$ isotope of carbon is used in radiocarbon dating.
$(3)$ Main component of ceramic,cement and glass is $........$
$(2)$ $..........$ isotope of carbon is used in radiocarbon dating.
$(3)$ Main component of ceramic,cement and glass is $........$
(N/A) $(1)$ The half-life of $^{14}C$ is $5770 \ years$.
$(2)$ $^{14}C$ isotope of carbon is used in radiocarbon dating.
$(3)$ The main component of ceramic,cement,and glass is $SiO_2$ (silica).
$(2)$ $^{14}C$ isotope of carbon is used in radiocarbon dating.
$(3)$ The main component of ceramic,cement,and glass is $SiO_2$ (silica).
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