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crimeas [40]
2 years ago
13

What is the number of neutrons in a helium atom?​

Biology
2 answers:
Goryan [66]2 years ago
8 0

The number of neutrons in a helium atom is TWO (2).

  • Helium (He) is the second chemical element in the periodic table.

  • Helium consists of two (2) protons and two (2) neutrons in its atomic nucleus.

  • In consequence, the atomic number of helium is equal to two (2).

  • The Sun contains approximately 25% He, which is generated by solar fusion.

In conclusion, the number of neutrons in a helium atom is TWO (2).

Learn more about helium here:

brainly.com/question/5596460

Mumz [18]2 years ago
7 0

Answer:

Helium atoms have two neutrons

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Kyle concludes that the cell must be a plant cell. How does Kyle know that the cell is a plant cell and not an animal cell?
Mnenie [13.5K]

Kile should know the answer because of the morphology (part of biology that studies the estructure and the form of something). The plant cell presents a rectangular form, while the animal's cells presents a round form.

There are other main differences. As their parts and the size. Before I explain that remember that a cell can be of two types eukaryotic (cell with nucleus) and prokaryote (cell with no nucleus). In the other they can be neurons, nefrons, etc...

The plant cell contains for example chloroplasts, cell wall and vascuoles; while animal's don't.  Both of them have nucleus, cell plants are generally larger than animals. Those are the main differences.

Thankyou.

Sorry for my bad english, It's not my native language.

3 0
3 years ago
3. Does your skate park playground ramp design support the law of conservation of energy? Use
nlexa [21]

Skate park is a good example that maintains the law of conservation as skater neither creates nor destroys energy.

Explanation:

As per the law of energy conservation, energy cannot be created nor can be destroyed but it’s form can definitely be changed. This theory can be well justified by the example of skate park playground. According to the rules of this law a skater can never go high more than 2 meters on the ramp’s other side because it has that gravitational energy potential.  

With every drop of the skater on the ramp the potential energy of the skater changes into kinetic energy. This two sides of the law justifies the fact that skate playground should be designed in such a way that it supports the law of conservation of energy.

3 0
3 years ago
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. What is the first step of thermonuclear fusion within the Sun to form helium-4?
torisob [31]

Answer:

a nucleus of Deuterium (2H)

Explanation:

formed from two protons with the emission of an antielectron and a neutrino. In the basic Hydrogen fusion cycle, four Hydrogen nuclei (protons) come together to make a Helium nucleus.

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2 years ago
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<span>C.The amount of light </span>
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The Train will take longer time
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