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natali 33 [55]
3 years ago
15

Radioactive decay is likely to occur when ... radioactive decay is likely to occur when ... protons break into neutrons and elec

trons. atoms collide with one another. an electron hits the nucleus. an atom has too many neutrons. an atom has too many electrons.
Chemistry
2 answers:
sergey [27]3 years ago
7 0

Answer:

When an atoms has too many neutrons.

Explanation:

When an unstable atom loses energy and charged particles (radiation) through radiation it is a phenomenon called radioactive decay, when a substantial energy is lost the atom becomes stable.There are five types of radioactive decay:

  1. Alpha decay
  2. Beta negative decay
  3. Gamma decay
  4. Beta positive decay
  5. Electron capture

xenn [34]3 years ago
3 0
Radioactivity or radioactive decay is the process that occurs when unstable isotopes or atoms release energy by emitting radiations such as ,gamma radiations, alpha radiations and beta radiations to attain stability. Therefore, in this case decay is likely to occur when a given atom has two many neutrons in its nucleus in order to attain stability.
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When the nail was copper-plated in Part III of the lab, what element do you think was reduced? Explain your answer in complete s
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Reduction <span>always results in a lowering of the oxidation number. The reaction of the system above is written as:

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From the reaction, we see that copper goes from the +2 to a neutral charge. Lowering of the oxidation number happens so this is the element that is being reduced.
6 0
3 years ago
Please help me with chemistry!
Helga [31]

Br₂ (l) + 2 NaI (s) → 2 NaBr (s) + I₂ (s)

Explanation:

Reacting bromide (Br₂) with sodium iodine (NaI) will produce sodium bromide (NaBr) and iodine (I₂).

To balance the equation the number of atoms of each element entering the  reaction have to be equal to the number of atoms of each element leaving the reaction, in order to conserve the mass.

Br₂ (l) + 2 NaI (s) → 2 NaBr (s) + I₂ (s)

where:

l - liquid

s - solid

This is a single replacement reaction because an element in a compound is replaced by another element. Generally a single replacement reaction is represented as: A + BC → AC + B

Learn more about:

types of chemical reactions

brainly.com/question/10105284

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brainly.com/question/13908054

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5 0
3 years ago
Given the balanced equation representing a reaction: 2h2o(l) + 571.6 kJ -&gt; 2h2(g) + o2(g). What occurred as a result of this
Ivan

Answer: option D) energy was absorbed and entropy increased.


Explanation:


1) Given balanced equation:


2H₂O (l) + 571.6 kJ → 2 H₂ (g) + O₂(g).


2) Being the energy placed on the side of the reactants means that the energy is used (consumed or absorbed). This is an endothermic reaction.


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3) As for the entropy, it is a measure of the disorder or radomness of the system.


Since, two molecules of liquid water were transformed into three molecules of gas, i.e. more molecules and more kinetic energy, therefore the new state has a greater degree of radomness, is more disordered, and you conclude that the entropy increased.


With that, you have shown that the right option is D) energy was absorbed and increased.

7 0
3 years ago
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vazorg [7]

Answer:

A. 1, 2, 5

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