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snow_tiger [21]
3 years ago
6

The noble gases are a group of chemical elements with very similar properties. A unique feature of this group of elements is tha

t they are known to be very inert, or unreactive, with other chemicals. What would be the best explanation for the low reactivity of these elements?
Biology
2 answers:
lawyer [7]3 years ago
6 0

Answer:

The correct answer is - the outermost shell of these elements are because their outermost shell of electrons is full (valency).

Explanation:

The noble gases are the chemical elements that are inert, or unreactive with any other chemicals. Elements tries to complete to the outer shell by gaining, sharing, or loosing the electron.

This is the reason the that cause the inertness of the noble gases and does not  takes part in the reaction,  The noble gases have complete outer shell so their is no need to share, gain or loose to stable the element.

Thus, the correct answer is -  the outermost shell of these elements are because their outermost shell of electrons is full (valency).

rjkz [21]3 years ago
3 0

Answer:

Noble gases are the group 0 elements and are all considered as the unreactive non-metal gases. Their application relies upon their low density, inertness, and non-flammability. In comparison to other elements, the noble gases are inert, that is, they are excessively unreactive.  

Generally, when the elements react, their atoms complete their outer shells by gaining, losing, or sharing electrons. The noble gases atoms already possess complete outer shells, thus, they do not possess the tendency to gain, lose, or share electrons. This is the main reason why noble gases are inert and are not involved in chemical reactions.  

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6 0
2 years ago
All the following are true of the movement of Earth's atmosphere except :
zheka24 [161]

Answer:

All  are true of the movement of Earth's atmosphere except :

d. Warm air is less dense than cool air so it tends to sink towards the Earth's Surface.

Explanation:

  • When gases heat up, their volume increases and  density decrease.
  • A decrease in density causes a substance to become lighter.
  • Thus, when air warms up due to heat from the sun its density decreases and it gets lighter.
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5 0
3 years ago
Tear glands have vesicles that release their secretion by exocytosis. These are classified as ___________ glands. However, _____
Vilka [71]

Answer:

1. Merocrine

2. Holocrine

Explanation:

Merocrine glands are the exocrine glands that synthesize their secretions on ribosomes attached to rough ER. These secretions are packaged by the Golgi complex into the secretory vesicles and are released from the cell via exocytosis. Tear glands, salivary glands are some examples of merocrine glands.

The cells of holocrine glands do not have vesicles but accumulate a secretory product in their cytosol. The mature secretory cells rupture to release the secretory product. This results in the presence of large amounts of lipids from the plasma membrane and intracellular membranes in secretions of these glands. One example of a holocrine gland is an oil-producing gland of the skin.

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andrey2020 [161]

Answer:

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8 0
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Natalka [10]

Answer:

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most mammals, have closed cardiovascular systems. The two main circulation pathways in invertebrates are the single and double circulation pathways.

4 0
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