Answer:
the rigid outer part of the earth, made up of the crust and upper mantle.
Explanation:
Google’s definition
Answer:
Aside from the sun, the water cycle is driven by the transpiration in plants and respiration in humans. Humans and animals both release water vapor in the atmosphere.
Explanation:
I hope this helps you! :D
Endocytosis where the substance will be surrounded by a cell membrane and then broken down for food or just discarded as waste.
Answer:
The second friend is mostly correct.
Explanation:
When pressure decreases, gas solubility decreases. The bubbles are gas molecules that were dissolved in the water at atmospheric pressure. The bubbles started coming out as a result of the decrease pressure. The second bubbles would be water vapor because as the pressure continue to decrease, the amount of vapor pressure ( vapor leaving the surface of the liquid ) equals the external pressure and water begin to boil. So the second bubbles must be water vapor.
<h2>
Required Answer :- </h2>
- In the question it is asked how many numbers of protons are present in a sodium atom.
- We know that the atomic number of sodium is 11.
- Sodium atom means it is in its neutral state, the neutral sodium atom has no charge on it.
- We know that the atomic number of an element is always equal to the number of protons for the particular element.
- Therefore the atomic number of sodium is 11 and the number of protons in sodium are 11.
<h3>Additional information :- </h3>
- If we know the atomic number of an element then only we can find the number of protons, neutrons and electrons present in it. The number of electrons in an element is equal to the atomic number of the respective element
- The atomic weight of the sodium is 23.
- The number of neutrons in sodium = Atomic weight of sodium – number of protons in sodium
= 23 – 11 = 12.
- So, the number of neutrons in sodium is equal to 12.
- The number of electrons in sodium is equal to the atomic number of sodium. Then the number of electrons in sodium is equal to 11.
- Therefore the number of protons, neutrons and electrons in sodium are 11, 12 and 11 respectively.
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