The most common use of radioisotopes in medicine is for diagnosis of illness. true or false

1 answer:

6 0

The answer is true. They are used as tracer elements where they are introduced into the body of a patient and the uptake of the radioactive isotopes by particular tissues is followed. This differential uptake of the isotopes by tissues results to diagnosis of a particular disorder or illness in the body.

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How many milliliters of a 0.275 M NaOH solution is required to react with 0.450 L of CO2 gas

padilas [110]

Volume of NaOH required to react = 145.5 ml

<h3>Further explanation</h3>

Reaction

CO₂(g) + 2 NaOH(aq) ⇒Na₂CO₃(aq) + H₂O(l)

The volume of CO₂ : 0.45 L

mol CO₂ at STP (O C, 1 atm) ⇒ at STP 1 mol gas 22.4 L :

$\tt mol~CO_2=\dfrac{0.45}{22.4}=0.02$

From the equation, the mol ratio of CO₂ : NaOH = 1 : 2, so mol NaOH :

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Which isotope of lithium has 3 neutrons?

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