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ira [324]
2 years ago
14

element K has the following electronic configuration 1s2 2s2 2p6 3s2 . how many unpaired electrons can be found in K​

Chemistry
1 answer:
VladimirAG [237]2 years ago
7 0

Answer:

The key to deciphering this is to look at the last bit of information of the electron configuration

3

p

2

.

The '3' informs us that the element is in the 3rd Energy Level or row of the periodic table. The 'p' tells us that the element is found in the p-block which are all of the Groups to the right of the transition metals, columns 13-18. The superscript '2' tells us that the element is found in the 2nd column of the p-block Group 14.

I hope this was helpful.

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How many atoms are present in 3.1 moles of copper?
ozzi

Answer:

<h2>1.8662 × 10²⁴ atoms</h2>

Explanation:

The number of atoms can be found by using the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

We have

N = 3.1 × 6.02 × 10²³

We have the final answer as

<h3>1.8662 × 10²⁴ atoms</h3>

Hope this helps you

8 0
3 years ago
The acceleration of a runner who accelerates from 0 m/s to 3 m/s in 12s
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4 m/s^2


I hope this helps! 
5 0
4 years ago
For a single component system, why do the allotropes stable at high temperatures have higher enthalpies than allotropes stable a
solniwko [45]

Answer:

The difference in the magnetic orientation influences the thermal stability of the allotropes of iron.

Explanation:

It is known that the allotropes of iron exist in three phases: α - phase, β- phase, and γ-phase. However, two prominent structures are the  α - phase and γ-phase. Now, let us look at the two phrases:

α - phase

This structure is a body-centered cube. It means that the unit cell structure resembles a cube. The lattice points are in the face of the cube. This subsequently affects the magnetic structure of the iron allotrope.

γ-phase

This allotrope has a lattice structure. It simply means that the structure has lattice points on the face of the cube. The structure generally affects the magnetic properties of the transitional metal; hence the stability of the γ-phase compared to α-phase.

8 0
4 years ago
You buy butter $3.31 a pound one portion of onion compote requires 1.7 oz of butter how much does the butter for one portion cos
Lorico [155]

Answer:

The butter for one portion cost is $0.35.

Explanation:

5 0
3 years ago
At which step(s) pictured on the graph below, does the temperature remain constant?
ElenaW [278]

Answer:

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Explanation:

Condensation is the proces in which gaseous molecules are converted into liquid. During condensation, the temperature remains constant as there is no change in kinetic energy of the gaseous molecules.

From the graph given above, we can see that the temperature at the Gas – Liquid remains the same. At this state, condensation occurs as the gas molecules are converted into liquid.

8 0
3 years ago
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