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Bogdan [553]
3 years ago
9

What is the electron configuration of (Si) in noble gas notation

Chemistry
2 answers:
topjm [15]3 years ago
3 0

Silicon is a chemical element with the symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic lustre, and is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, and lead are below it.

[Ne] 3s² 3p²

Alexus [3.1K]3 years ago
3 0

Answer:

[Ne] 3s² 3p²

Explanation:

Since the 3s if now full we'll move to the 3p where we'll place the remaining two electrons. Therefore the Silicon electron configuration will be 1s²2s²2p^63s²3p². The configuration notation provides an easy way for scientists to write and communicate how electrons are arranged around the nucleus of an atom.

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Physical science!!! please help
IgorLugansk [536]

Answer:

The correct answer is : No, because there are 4 hydrogen atoms on the reactants side and 2 on the products side.

Explanation:

NH_4NO_3\rightarrow N_2O+H_2O

The given reaction equation is not balanced because:

  • Number of hydrogen atoms  on both sides are not equal that is 4 on reactants side and 2 on products side.
  • Number of oxygen atoms on both sides are not equal that is 3 on reactants side and 2 on products side.

In a balanced chemical equation number of atoms of each elements are equal on both sides.

So, the balanced chemical equation will be:

NH_4NO_3\rightarrow N_2O+2H_2O

7 0
3 years ago
The chemical formula for water, h2o, means that each water molecule contains
DanielleElmas [232]
B - two hydrogen atoms and one oxygen atom
6 0
3 years ago
Read 2 more answers
Can y'all help me with number 4
astraxan [27]
I think the answer is A but i'm not sure
6 0
3 years ago
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What is the energy of a photon with:<br> a wavelength of 827 nm? What type of radiation is it?
xeze [42]

Explanation:

Given parameters:

 Wavelength of photon  = 827nm  = 827  x 10⁻⁹m

Unknown:

Energy of the photon = ?

Type of radiation = ?

Solution:

The energy of a photon can be derived using the expression below:

      E = \frac{h c}{wavelength}

h is the Planck's constant = 6.63 x 10⁻³⁴m²kg/s

c is the speed of light = 3 x 10⁸m/s

Insert the parameters and solve;

      E  = \frac{6.63 x 10^{-34} x 3 x 10^{8}  }{827x 10^{-9} }  

       E = 2.4 x 10⁻¹⁹J

Type of radiation:

Near infrared radiation

 

7 0
2 years ago
Consider the reaction 2 SO2(g) + O2(g) &lt;=&gt; 2 SO3(g), which is exothermic as written. What would be the effect on the equil
enot [183]

Answer:

Removing O₂, means removing one of the reactants and the system would counteract this effect by producing more O₂, thereby shifting the equilibrium position to the left and favouring the backward reaction.

Explanation:

The principle that explains how changes in temperature, Concentration and Pressure of reactants or products of a reaction at equilibrium affect the equilibrium position of the reaction is the Le Chatelier's principle.

The Principle explains that a system/process if a system/process which is at equilibrium is disturbed/perturbed/constrained by one or more changes (in concentration, pressure or temperature), the system would shift the equilibrium position to counteract the effects of this change.

Removing O₂, means removing one of the reactants (changing its concentration) and the system would counteract this effect by producing more O₂, thereby shifting the equilibrium position to the left and favouring the backward reaction.

5 0
3 years ago
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