3 years ago

What is the easiest way to determine the reactivity of an element

1 answer:

4 0

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Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

yuradex [85]

Answer:

$\boxed{\text{2408 min}}$

Explanation:

The integrated rate law for radioactive decay is

$\ln\dfrac{N_{0}}{N_{t}} = kt$

1. Calculate the decay constant

$\begin{array}{rcl}\ln \dfrac{100}{90} & = & k \times 366\\\\1.054 & = & 366k\\\\k & = & \dfrac{1.054 }{366}\\\\k & = & 2.879 \times 10^{-4} \text{ min}^{-1}\\\end{array}\\\\$

2. Calculate the half-life

$t_{\frac{1}{2}} = \dfrac{\ln2}{k}\\\\t_{\frac{1}{2}} = \dfrac{\ln2}{2.879 \times 10^{-4} \text{ min}^{-1}} = \text{2408 min}\\\\\text{The half-life for decay is } \boxed{\textbf{2408 min}}$

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at do oxygen (O) and bromine (Br) have in common? They both tend to gain electrons to gain stability. They both have seven valen

avanturin [10]

Both of them have high electronegativity. Hence they both tend to gain electrons to gain stability.

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What is the IUPAC name for the compound FeS?

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Of the following: H2(g); He(g); CO2(g); which would behave least like an ideal gas? Why?

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Suppose you stir a little baking soda into water until the water looks clear again how could you prove to someone the material i

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You could boil away the water, evaporating it, and leaving behind the solute.

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