Ask question

Ask question

All categories

2 years ago

15

When a radioactive isotope releases an alpha particle, the atomic number of the atom is

1 answer:

Ipatiy [6.2K]2 years ago

5 0

The radioactive isotope's atomic number decreases by two, and the alpha particle has an atomic number of 2. It wasnt clear which one you were asking for, so there is both.

You might be interested in

Assessment timer and count

Aneli [31]

Answer:

I think it's the last one.

Explanation:

Because gravity is what makes our planets stay still and stops our planets from dropping and as they orbit around the sun that's what keeps the moon from bumping into earth. I hope this helps and makes sense.

<h3>p.s. can I pls be ur brainliest answer, I'd appreciate it </h3>

3 0

2 years ago

Formaldehyde is a carcinogenic volatile organic compound with a permissible exposure level of 0.75 ppm. At this level, how many

Flauer [41]

Answer : The amount of formaldehyde permissible are, $5.4\times 10^{-6}g$

Explanation : Given,

Density of air = $1.2kg/m^3=1.2g/L$ $(1kg/m^3=1g/L)$

First we have to calculate the mass of air.

$\text{Mass of air}=\text{Density of air}\times \text{Volume of air}$

$\text{Mass of air}=1.2g/L\times 6.0L$

$\text{Mass of air}=7.2g$

Now we have to calculate the amount of formaldehyde.

Permissible exposure level of formaldehyde = 0.75 ppm = $\frac{0.75g\text{ of formaldehyde}}{10^6g\text{ of air}}$

Amount of formaldehyde in 7.2 g of formaldehyde = $7.2g\times \frac{0.75g\text{ of formaldehyde}}{10^6g\text{ of air}}$

Amount of formaldehyde in 7.2 g of formaldehyde = $5.4\times 10^{-6}g$

Thus, the amount of formaldehyde permissible are, $5.4\times 10^{-6}g$

8 0

2 years ago

Explore how the identity of reactants and products can be used to classify types of reactions

aliya0001 [1]

Reactants are substances that start a chemical reaction, and products are substances that are produced in the reaction hope this helps

8 0

2 years ago

What is the significance of the periodic table of elements

bekas [8.4K]

Answer:

The table is useful for modern students and scientists because it helps predict the types of chemical reactions that are likely for an element

6 0

2 years ago

4. Which of the following is NOT a common property of bases? A. Feels slippery B. tastes bitter C. Reacts with metal D. Changes

alisha [4.7K]

Reacting with metals is not a common property of bases. Bases do however react with acids.

3 0

2 years ago

Read 2 more answers