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adell [148]
3 years ago
8

Scientists have observed that when oceanic plates and continental plates collide, the oceanic plate is driven under (slides belo

w) the continental plate. The MOST LIKELY reason for this happening is
Chemistry
2 answers:
Vanyuwa [196]3 years ago
5 0

Answer:

thi s is 4 ano

Explanation:

sjfdbbjjbfogfg

BabaBlast [244]3 years ago
3 0

Answer:

the continental plate is bigger than the oceanic plate.

Explanation:

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Neptunium-237 undergoes a series of α-particle and β-particle productions to end up as thallium-205. How many α particles and β
Fantom [35]
<h3>Answer:</h3>

8 alpha particles

4 beta particles

<h3>Explanation:</h3>

<u>We are given;</u>

  • Neptunium-237
  • Thallium-205
  • Neptunium-237 undergoes beta and alpha decay to form Thallium-205.

We are required to determine the number of beta and alpha particles produced to complete the decay series.

  • We need to know that when a radioisotope emits an alpha particle the mass number reduces by 4 while the atomic number decreases by 2.
  • When a beta particle is emitted the mass number of the radioisotope increases by 1 while the atomic number remains the same.

In this case;

Neptunium-237 has an atomic number 93, while,

Thallium-205 has an atomic number 81.

Therefore;

²³⁷₉₃Np → x⁴₂He + y⁰₋₁e + ²⁰⁵₈₁Ti

We can get x and y

237 = 4x + y(0) + 205

237-205 = 4x

4x = 32

 x = 8

On the other hand;

93 = 2x + (-y) + 81

but x = 8

93 = 16 -y + 81

y = 4

Therefore, the complete decay equation is;

²³⁷₉₃Np → 8⁴₂He + 4⁰₋₁e + ²⁰⁵₈₁Ti

Thus, Neptunium-237 emits 8 alpha particles and 4 beta particles to become Thallium-205.

5 0
3 years ago
Dryers work with forced_____.<br><br>One word answer please ​
Zina [86]

Answer:

electricity

Explanation:

I'm not 100% sure though

7 0
3 years ago
Read 2 more answers
Gaseous methane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . If of water is produced fro
Nonamiya [84]

Answer:The masses of the reactants and products formed are not included in the question, so we cannot determine the percentage yield of water without knowing the yields of other substances.

However the formulae for percentage yield is;

Percentage yield=experimental yield/theoretical yield X 100

3 0
3 years ago
What radionuclides is used in diagnosis of atherosclerosis
aliina [53]
Answer: technetium-99.

Explanation:

This is not an answer that you can look for in a book.

You need to do some research.

You can fiind the abstract of the article titled <span>Molecular imaging of atherosclerosis using a technetium-99m-labeled endothelin derivative.</span>

The conclusion of this scientific article is that labeling with the radiosotope Tc - 99 iis feasibele to visualize the effects of an experiment inducing atherosclerosis, which gives the answer to the question posted.
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8 0
3 years ago
What electron configuration represents a nitride ion?
IceJOKER [234]
The electron configuration that represents the nitride ion<span> is 1s² 2s²2p⁶</span>
3 0
3 years ago
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