Nuclei of u-238 atoms are

Answers

Answer 1

Answer:

Nuclei of U-238 atoms are unstable and radioactive isotope of uranium . It decays naturally and emits alpha (α) particle.

What is Nuclei of uranium ?

The actinide series includes the metallic, silver-gray element uranium (U). It serves as the primary fuel for nuclear reactors and is also a component of nuclear weapons.

Since uranium has an atomic number of 92, its atomic structure consists of 92 protons and 92 electrons. The nucleus of U-238 contains 146 neutrons, but this number can range from 141 to 146. Due to its radioactivity, uranium constantly emits particles and transforms into new elements.

There is a recognized radioactive decay series for uranium. The most prevalent uranium isotopes are U-238 and U-235 (which has 143 neutrons). All three isotopes of uranium (U-238, 235, and 234) are present in nature, and variations from the typical composition are rarely greater than 0.01%.

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Answer 2

Answer: Nuclei of u-238 atoms are unstable and spontaneously emit alpha particles.

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Oceans receive freshwater from precipitation and rivers. Yet ocean levels do not change very much from these actions. Why are ocean levels not greatly affected?

Answers

Ocean levels are not greatly affected because when water is deposited or received from the ocean, at the same time water is being evaporated from the ocean to condense in the clouds and them form into precipitation.

Two reasons:

1). Because oceans are big and deep, and have a lot of water in them,
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2). Because the sun shines on oceans, and tons of water evaporates
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What happens when heat is removed from a liquid and it cools?

Answers

The energy content is decreased and so is the particle speed.

Than it hardens and turns into a solid

Please answer quickly and correctly. if you do i will mark you brainliestA black dog is at greater risk for overheating on a sunny day than a similar white dog. That's because black fur _____ more light than white fur.
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C. transmits

Answers

Answer:

The answer is B

Explanation:

My answer to this quesstion is B because the black fur will absorb more light which then results for the black dog with black fur at a greater risk.

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Answers

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Answers

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