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3 years ago

5. What is metallic bonding? 6. Why are metals shiny?

Chemistry

1 answer:

cricket20 [7]3 years ago

4 0

Answer:

Metallic bonding is found in metals and their alloys. When the atoms give up their valence electrons, they form ions. These ions are held together by the electron cloud surrounding them. Metals are shiny because they have a lot of free (i.e. delocalized) electrons that form a cloud of highly mobile negatively charged electrons on and beneath the smooth metal surface in the ideal case. ... In the absence of any external EM field, the charges in the plasma are uniformly distributed within the metal.

Explanation:

In metallic bonding, the electrons are “surrendered” to a common pool and become shared by all the atoms in the solid metal.

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Billy the friendly Robot uses 50 N of force to lift a box 2 meters in the air. How much work did Billy perform?

nexus9112 [7]

Answer:

Work done, W = 100 J

Explanation:

We have, Billy the friendly Robot uses 50 N of force to lift a box 2 meters in the air.

It is required to find the work done by Billy.

Work done by an object is given in terms of force and displacement. The formula used to find the work done is given by :

$W=Fd\\\\W=50\ N\times 2\ m\\\\W=100\ J$

So, the work performed by Billy is 100 J.

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3 years ago

For full credit, show the details of each calculation below. Use more paper if needed.

vredina [299]

Answer:

Explanation:

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2) See picture in attachment.

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2 years ago

True or False: the force of attraction that holds two atoms together is called a chemical bond

Genrish500 [490]

The answer is true.

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2 years ago

What is the wavelength, in nm, of the light photon emitted by a hydrogen atom when an electron goes from n

xxMikexx [17]

Answer:

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Explanation:

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2 years ago

Why krypton and noble gas are not used in airships using the periodic table?

WITCHER [35]

Answer:

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Explanation:

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2 years ago