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jekas [21]
2 years ago
8

How many nearest neighbors does each silicon atom have in solid si??

Chemistry
1 answer:
ANTONII [103]2 years ago
3 0
I think each silicon atom is bounded to 4 other silicon atoms. 
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What happens to the potential energy of water in a stream as gravity pulls it downhill
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2 years ago
Use the information below to answer the following questions.
Slav-nsk [51]

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A sample of ammonia has a mass of 82.9 g. how many molecules are in this sample?
alina1380 [7]
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3 years ago
Read 2 more answers
The atomic radius of main group elements generally increases down a group because
Pachacha [2.7K]

The atomic radius of main group elements generally increases down a group because as there are more electrons they are farther away from the nucleus and the electrons closer to the nucleus shield the outer electrons from the protons for attraction.

8 0
3 years ago
In going across a row of the periodic table, protons and electrons are added and ionization energy generally increases. In going
RoseWind [281]

Answer:

Explanation:

Ionization energy:

It is the minimum amount of energy required to remove the electron from isolated gaseous atom to make the ion.

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When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required.  Where as,

When we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.

4 0
3 years ago
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