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Fluorine 18 has a half life of 110 min so if 200 mg of fluorine 18 is stored at six thirty am how many mg of the isotope is till active at noon?
Wiki User
∙ 14y ago
0 mg they all have the same half life so they all "die".
Wiki User
∙ 14y ago
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Why is fluorine stored in teflon-coated containers?
it reacts with basicly everything, its one of the most reactive elements, it will react with glass steel and even some of the noble gases
What is a very reactive non metals?
The highly reactive non-metals are in the halogen group. They just need one more electron to fill the octet. Therefore they are highly reactive. For example fluorine and chlorine. And the highly reactive metals are placed in the first group (alkali metals). For example Sodium and potassium.
What is an HF molecule?
HF is the hydrid of fluorine, or fluoride of the hydrogen. the acid which can't be stored in the glass tares, because this compound reacts with the SiO2. Extremely dangerous.
What types of substances are stored by plants?
starch is one substance stored in plants because starch is not osmotically active
Is diffusiona type of passive transport or active transport?
Passive transport is where materials are transported across a membrane without the use of stored energy. Active transport is where materials are transported across a membrane using ATP, or another source of stored cellular energy. Diffusion is where solutes flow across a membrane in response to a concentration gradient, and requires no energy input to occur. Therefore, diffusion is a form of passive transport.
If 200 mg of fluorine -18 is stored at 630 am how many mg of the isotope is still active at noon?
Only 25 mg remain (the half life of 18F is 110 min).
How do you store fluorine?
Fluorine is stored in Teflon (polytetrafluoroetheneor -ethylene) containers. This is due to two reasons:1. Nearly all containers will corrode with fluorine in it; even glass containers will corrode. But since the Teflon polymer already contains fluorine, the fluorine that is stored in it can't react with the container.2. The Teflon polymer is very non-reactive(giving it its "non-stick"characteristic) due to the strong bonds between the carbon and fluorine atoms, meaning it can withstand reactive and corrosive chemicals like fluorine.
How is fluorine stored in a lab as it cannot be stored in glass?
it is stored in a lab in metal containers and/or in steal container b/c it reacts chemically with other materials..ie: glass, water, plastic...
Why is fluorine stored in teflon-coated containers?
it reacts with basicly everything, its one of the most reactive elements, it will react with glass steel and even some of the noble gases
What is a very reactive non metals?
The highly reactive non-metals are in the halogen group. They just need one more electron to fill the octet. Therefore they are highly reactive. For example fluorine and chlorine. And the highly reactive metals are placed in the first group (alkali metals). For example Sodium and potassium.
What is an HF molecule?
HF is the hydrid of fluorine, or fluoride of the hydrogen. the acid which can't be stored in the glass tares, because this compound reacts with the SiO2. Extremely dangerous.
What subatomic contains the energy stored in chemical bonds?
isotope.
What subatomic particle contains the energy stored in chemical bonds?
isotope.
Active directory information is stored on each domain controller in a file called?
The Active Directory database is stored on each domain controller in a file called NTDS.DIT
Where are users account stored on a workstation in a workgroup?
the user account is stored in the active directory
How many files are stored in an active folder?
20kb
Why can erepsins be stored in active forms?
Erepesins act only on partially digested proteins and can be stored in active form. Erepsin is a protein that is a fraction that is found in the juices in the intestine.
