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Vikentia [17]
2 years ago
6

15

Chemistry
1 answer:
Iteru [2.4K]2 years ago
6 0

Good electrical conductivity and electronegativities less than 1.7 are the properties and characteristic of Group 2 elements at STP.

<h3>What are the properties of group 2 elements?</h3>

Group 2 elements are metals so they are good conductors of heat and electricity. It has electronegativity values less than 1.7 and very reactive. They form 2+ charge in cationic form and also formed ionic bonds with other negatively charged elements.

So we can conclude that good electrical conductivity and electronegativities less than 1.7 are the properties and characteristic of Group 2 elements at STP.

Learn more about electronegativity here: brainly.com/question/2415812

#SPJ1

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Answer:

\Delta H will be 90054 J

Explanation:

Number of moles = (mass)/(molar mass)

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So, 1 mol of CuCl_{2} produces \frac{670}{0.00744}J of heat or 90054 J of heat

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We will see that the volume of the unit cell is 144,070,699.06 pm^3

<h3>How to get the volume of a body-centered cubic unit cell?</h3>

In a body-centered cubic unit cell, the side length of the cube is given as:

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And the volume of a cube is the side length cubed, then we can see that the volume of our cube will be:

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Solving that we get:

V  = (\frac{4}{\sqrt{3} }*227pm)^3 = 144,070,699.06pm^3

This is the approximated volume of the unit cell.

If you want to learn more about unit cell structures, you can read:

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