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3 years ago

Why does LiCl does not exhibit frenkel defect?

1 answer:

3 0

Frenkel defect is a defect in crystalline solids in which an atom is displaced from its lattice position to an interstitial space. This creates a vacant space at the original site and an interstitial defect at the new site within the same element. This defect does not affect the chemical properties of the compound. This defect usually occur in ionic solids with large size difference between the anion and cation.
LiCl does not exhibit Frenkel defect because the size difference between the anion and the cation of the compound is very small.

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When an alkaline earth metal, a, reacts with a halogen, x, the formula of the covalent compund formed should be a2x?

Ierofanga [76]

Alkaline earth metal are the elements present in II group in the periodic table and are known as 'Metals' and have a charge of +2.

Alkaline earth metals - Be , Mg Ca, Sr , Ba, Ra

Halogens are present in VII A group in the periodic table and are 'Non-metals' and have a charge of -1.

Halogens - F, Cl, Br, I, At

When Alkaline earth metal (metals) combine with Halogens (non-metals) the compound formed will be ionic compound and the formula of the compound will be based on the charges of the element.

When we write the formula of the ionic compound the charges of the elements get criss crossed.

For example - Mg (Alkaline earth metal) have a charge of +2 and Cl (Halogen) have a charge of -1 and when they combine to form the formula their charges get criss crossed and we will get $Mg_{1}Cl_{2}$ or $MgCl_{2}$

When an alkaline earth metal, A, reacts with a halogen, X, the formula of the Ionic compound formed should be $AX_{2}$

3 0

4 years ago

Element 1 has 1 valence electron, element 2 has 2 valence electrons, element 3 has 3 valence electrons, element 4 has 4 valence

Morgarella [4.7K]

Element because its closer to having 8

8 0

4 years ago

What does the atomic number of an element represent?

harkovskaia [24]

Hello!
Whenever you see an atomic number with an element, you know the number of protons in the nucleus of the atom, which determines the chemical of an element and its place on the periodic table.

For example, Hydrogen has only one proton, however, if you were to add say 78 more protons, you'd get gold!

5 0

3 years ago

Read 2 more answers

What could be done to increase the acceleration of a dog sled? List two possibilities

snow_lady [41]

To increase the acceleration of the dog sled, increase the applied force on the sled and reduce the mass on the sled.

According to Newton's second law of motion, the force applied to an object is directly proportional to product of mass and acceleration of the object.

F = ma

where;

a is the acceleration of the dog sled

$a = \frac{F}{m} \\\\$

To increase the acceleration of the dog sled:

Increase the applied force on the sled.
Reduce the mass on the sled.

Learn more about Newton's second law here: brainly.com/question/3999427

3 0

3 years ago

17. How many moles are there in a sample containing 1000 molecules of H2O?18. If you wanted a sample of H2O containing 6 x 23mol

Viefleur [7K]

17) mol of $H_{2}O$ = $\frac{no. of molecule}{L}$
= $\frac{1000 molecules}{6.03 * 10^{23} molecules/mol }$
= 1.658 *    $10^{-21} mol$

18) mol = $\frac{molecule}{L}$
   $\frac{Mass}{Mr} = \frac{Molecule}{L}$
Let mass of oxygen = x
   $\frac{x}{(2 * 1) + (16)} = \frac{6 * 10^{23} }{6.03 * 10^{23} }$
$x = (6 * 10^{23} ) (18 g/ mol)$
= 17.9 g

3 0

4 years ago