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hhopke
 one year ago
What is the halflife of this radioactive substance? Count rate graph attached.
hhopke
 one year ago
What is the halflife of this radioactive substance? Count rate graph attached.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Half life is when the starting or initial value goes down to half its amount. At t=0s, the count per minute is 240.

hhopke
 one year ago
Best ResponseYou've already chosen the best response.1So the halflife is the time taken for the count rate to be 120? @Shalante

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes 240/2=120 Now figure the day period that the counting per minute is 120. It can in decimals or fraction.

hhopke
 one year ago
Best ResponseYou've already chosen the best response.1Okay. Thank you so much!

jmansedg
 one year ago
Best ResponseYou've already chosen the best response.0shal can you help me it wont let me post so here you go The shape a mineral forms when slowly solidifying one layer of molecules at a time is called A. hardness B. luster C. crystal form D. geoform

hhopke
 one year ago
Best ResponseYou've already chosen the best response.1Probably geoform, but I haven't taken that class yet.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Crystals in a mineral are in layers after layers.
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