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Lemur [1.5K]
3 years ago
12

Help! Science Question! Brainliest can be yours!!!

Chemistry
2 answers:
Mkey [24]3 years ago
8 0

Answer:

CONSTANT

Explanation:

Carbon-14 is a radioactive isotope. It is found in the air in carbon dioxide molecules. The amount of carbon-14 in the air has stayed the same for thousands of years. There is a small amount of radioactive carbon-14 in all living organisms because it enters the food chain.

Once an organism dies, it stops taking in carbon-14. The carbon-14 it contained at the time of death decays over a long period of time, and the radioactivity of the material decreases.

evablogger [386]3 years ago
3 0

Answer:

constant

Explanation:

As long as an organism lives, the amount of carbon-14 it contains is <em>CONSTANT</em>.

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<h3>Explanation</h3>

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As their names might suggest:

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The two electrons in question come from the same atom. The question suggests that they have the same <em>n</em>, <em>m_l</em>, and <em>m_s</em>. As a result, both electrons are in main energy level <em>n</em> = 3. They share the same spin.

However, the two electrons differ in their value of <em>l</em>.

  • <em>l </em>= 2 for the first electron. It belongs to a <em>d</em> sublevel.
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<h3>Reference</h3>

[1] Kamenko, Anastasiya, et. al, "Quantum Numbers", Physical & Theoretical Chemistry, Chemistry Libretexts, 24 Mar 2017.

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