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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Which ionic equation for reaction of Magnesium with dilute hydrochloric acid is correct? Mg (s) + 2H+ (aq) â Mg2+ (aq) + H2 (g)

belka [17]

Answer:

Mg(s) + 2H⁺(aq) ⟶ Mg²⁺(aq) + H₂(g)

Explanation:

A net ionic equation shows all the ionic substances as ions and shows the correct state of each substance.

B. is wrong. HCl ionizes in aqueous solution into H⁺ and Cl⁻.

C. is wrong. Mg²⁺ is not a solid. It is an aqueous ion.

D. is wrong. The equation needs 2H⁺(aq) to be balanced.

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3 years ago

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Explain how convection currents drive tectonic plate movement. In your answer, describe the role of energy transfer in the movem

zavuch27 [327]

Convection currents drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle. In places where convection currents rise up towards the crust's surface, tectonic plates move away from each other in a process known as seafloor spreading

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An average human bad temperature is 98.6 Fahrenheit what is the equivalent temperature in degrees celsius

jok3333 [9.3K]

The average human body temperature, in Celsius, is 37°.

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3 years ago

The image shows sedimentary rock layers with index

vichka [17]

Layer 2 and layer 9 are the same relative age.

Explanation:

The statement that best describes the rock layers is that Layer 2 and layer 9 are the same relative age..

The relative age is used in placing sedimentary rocks in order of their occurrence.

To do this, we apply the sedimentary laws.

The ones applicable here are:

Principle of superposition states that in an undisturbed sequence, the oldest layer is at the base and youngest on top.
Principle of cross cutting states that a fault and intrusion are younger than the rocks they cut through.
Principle of fossil and fauna succession states that fossils and fauna succeed on another in a determinable form.

We see that layers 2 and 9 have the same fossil and are the same lithological units.

learn more:

Sedimentary rocks brainly.com/question/2740663

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3 years ago

A. Lithium iodide and bromine react to produce lithium bromide and iodine.

Gelneren [198K]

2LiI+1Br₂-->2LiBr+1I₂

1CsNO₃+1KCl-->1CsCl+1KNO₃

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3 years ago