2 years ago

Why are xrays used to probe the crystal structure of a material

Chemistry

1 answer:

ioda2 years ago

8 0

Answer:

Because X-rays have wavelengths similar to the size of atoms

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Hi, there the answer is

A)extrusion

Explanation:

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Answer: The bond between boron and hydrogen in boron trihydride is covalent bond.

Explanation:

The type of bonding between the atoms forming a compound is determined by using the electronegativity difference between the atoms. According to the pauling's electronegativity rule:

If $\Delta \chi=0$ , then the bond is non-polar.
If $\Delta \chi\leq 1.7$ , then the bond will be covalent.
If $\Delta \chi>1.7$ , then the bond will be ionic.

We are given:

Electronegativity for boron = 2.0

Electronegativity for hydrogen = 2.1

$\Delta \chi=\chi_{H}-\chi_{B}\\\\\Delta \chi=2.1-2.0=0.1$

As, $\Delta \chi$ is less than 1.7 and not equal to 0. Hence, the bond between boron and hydrogen is covalent bond.

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Why the stability of No+ is greater than No?

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Because of the protons connected to the Nitrogen oxide group giving it its positive charge.

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What is the symbol of the new atom?<br><br>Also, is the atomic number 86?

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Answer:

Explanation:

Rn is the symbol for radon with the atomic number of 86

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