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Anvisha [2.4K]
4 years ago
12

Which radioisotope is naturally occurring?

Chemistry
1 answer:
Lena [83]4 years ago
5 0

Answer:

I think the answer is 13H

Explanation:

The best known example of a naturally-occurring radioisotope is uranium. All but 0.7 per cent of naturally-occurring uranium is uranium-238; the rest is the less stable, or more radioactive, uranium-235, which has three fewer neutrons in its nucleus.

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In each drop-down menu.
larisa86 [58]

Answer:

I might be wrong i'm not sure

Explanation:

Chemical reactions often involve changes in energy due to the breaking and formation of bonds. Reactions in which energy is released are exothermic reactions, while those that take in heat energy are endothermic.

4 0
3 years ago
Which has the least mass<br> proton<br> electron<br> neutron
Katarina [22]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ This would be an electron.

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

4 0
3 years ago
Read 2 more answers
As you add electrons to an energy level, without adding more protons are there more or less repulsive
Dmitry_Shevchenko [17]

Answer:

There will be more repulsive force between the electrons.

Explanation:

Electrons contain negative charge.As a result the electron will repulse another adjacent negatively charged electron.

   According to the given question addition of electrons to en energy level without adding more protons will increase the overall negative charge in the the energy level in which the electrons are added.

  This ultimately leads to generate more repulsive force between the electrons.

6 0
3 years ago
B. How many moles of phosphorous pentachloride will react with 7.36 g of water?
Flura [38]

Answer:

0.102 mol

Explanation:

Step 1: Write the balanced equation

PCl₅ + 4 H₂O ⇒ 5 HCl + H₃PO₄

Step 2: Calculate the moles corresponding to 7.36 g of H₂O

The molar mass of H₂O is 18.02 g/mol.

7.36 g × 1 mol/18.02 g = 0.408 mol

Step 3: Calculate the moles of PCl₅ required to react with 0.408 moles of H₂O

The molar ratio of PCl₅ to H₂O is 1:4.

0.408 mol H₂O × 1 mol PCl₅/4 mol H₂O = 0.102 mol PCl₅

5 0
3 years ago
The force of gravity between Earth and a baseball is _____ the force of gravity between Earth and a watermelon.
gulaghasi [49]
Are there any options?
5 0
4 years ago
Read 2 more answers
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