Hands-on Lab Activities - UC Santa Barbara

Which alkali metal is the most reactive out of lithium, sodium and potassium? Potassium is the most reactive alkali metal out of lithium, sodium and potassium. ... Which is the densest noble gas? Radon is the densest noble gas. 15. The noble gases are monatomic. What does this mean? Monatomic means they exist as single atoms. MULTIPLE . ................
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