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skelet666 [1.2K]
3 years ago
11

Which of the following elements is a metalloid

Chemistry
2 answers:
klemol [59]3 years ago
6 0
A metalloid can be:
 - Boron (B)
 - Silicon (Si)
 - Germanium ( Ge)
 - Arsenic (As) 
 - Antimony ( Sb)
 - Tellurium (Te)
 - Polonium (Po)

Hope this helps :)
irina1246 [14]3 years ago
6 0

Answer : Silicon is the element of Metalliod.

Explanation :

Metals : These are the elements that can easily loose electrons and forms cations.

For example : All the alkali or alkaline earth metals that is group 1 and 2 are the metals.

Non-metals : These are the elements that can easily gain electrons and form an anion.

For example : All the p-block elements that is group 13 to 18 are the non-metals.

Metalloids : These are the elements that shows both the property of metals and non-metals.

For example : Boron, silicon, germanium, arsenic, antimony, tellurium, polonium and astatine are the metalloids.

As per question, silicon is the elements of metalloids.

While, rubidium and vanadium are metals and radon is a noble gas.

Hence, the silicon is the element of Metalliod.

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How to solve 5gNaCl= MolE NaCl
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0.086mole

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3 years ago
The reaction of hydrogen and iodine to produce hydrogen iodide has a Kc of 54.3 at 703 K. Given the initial concentrations of H2
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Answer:

[HI] = 0.7126 M

Explanation:

Step 1: Data given

Kc = 54.3

Temperature = 703 K

Initial concentration of H2 and I2 = 0.453 M

Step 2: the balanced equation

H2 + I2 ⇆ 2HI

Step 3: The initial concentration

[H2] = 0.453 M

[I2] = 0.453 M

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Step 4: The concentration at equilibrium

[H2] = 0.453 - X

[I2] = 0.453 - X

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