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2 years ago

K-40 is a radioactive isotope of potassium that undergoes beta decay. What is the product of this decay

Chemistry

1 answer:

Aleks [24]2 years ago

5 0

Answer:

⁴⁰₂₀Ca + ⁰₋₁e

Explanation:

Beta decay:

Beta radiations are result from the beta decay in which electron is ejected. The neutron inside of the nucleus converted into the proton an thus emit the electron which is called β particle.

Properties of beta radiations:

The mass of beta particle is smaller than the alpha particles.

They can travel in air in few meter distance.

These radiations can penetrate into the human skin.

The sheet of aluminium is used to block the beta radiation

⁴⁰₁₉K → ⁴⁰₂₀Ca + ⁰₋₁e

The beta radiations are emitted in this reaction. The one electron is ejected and neutron is converted into proton.

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An ideal gas in a sealed container has an initial volume of 2.80 L. At constant pressure, it is cooled to 18.00 °C, where its

Aleks04 [339]

Answer:

$T_1=-91.18\°C$

Explanation:

Hello there!

In this case, given the T-V variation, we understand it is possible to apply the Charles' law as shown below:

$\frac{T_1}{V_1}= \frac{T_2}{V_2}$

Thus, since we are interested in the initial temperature, we can solve for T1, plug in the volumes and use T2 in kelvins:

$T_1= \frac{T_2V_1}{V_2}\\\\T_1= \frac{(18.00+273.15)K(1.75L)}{(2.80L)}\\\\T_1=182K-273.15\\\\T_1=-91.18\°C$

Best regards!

6 0

2 years ago

What was used to fill thermometers before mercury? magma bourbon brandy helium

Tasya [4]

Answer:brandy was used to tell the temperature.May 7, 2013

Explanation:

Before mercury, what was used to fill thermometers? Was it Hawaiian Punch, well no silly. Long before mercury filled thermometers, brandy was used to tell the temperature.May 7, 2013

4 0

2 years ago

Which disease is caused when white blood cells are produced in excess?

marin [14]

Answer:

it can cause blood cancer (leukemia)

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3 years ago

What is the relationship between absorbance and transmittance of a sample in a spectrophotometer? Plz help!!

Arlecino [84]

Answer:

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Explanation:

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1 year ago

Indicate the mechanistic symbol (SN1, SN2) that is most consistent with the following statement. Select the single best answer.

Degger [83]

Answer:

The most consistent mechanism is SN1.

Explanation:

The solvolysis of tert-butyl iodide in methanol will arise by the SN1 mechanism.

The reason for that is due the geometric structure of tert-butyl. The tertiary structure allows the formation of a stable carbocation, after the loss of the iodide ion. The carbocation will then be attacked by methanol molecules forming an eter.

4 0

2 years ago