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inna [77]
3 years ago
15

The electron configurations of two unknown elements X and Y are shown.

Chemistry
2 answers:
Svetllana [295]3 years ago
6 0

 X: 1S²2S²2P⁶

Y: 1S²2S²2P⁶3S²3P⁶

The statement  which  is most likely   correct  about  the two elements  is

They  will  not react  because  both  have a complete outermost shell and are  stable.


 <u><em>Explanation</em></u>

  The  P orbital can   hold a maximum  of   6  electrons,therefore the 2P orbital for x  and  3P  orbital  for  Y   which are  outermost  subshell  are  fully filled .


This make   element Y and x  stable  since they  cannot  react either by gaining or losing electrons.

NeX [460]3 years ago
3 0

Answer: They will not react because both have a complete outermost shell and are stable.

Explanation:

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What is the density of an object that has a mass of 6.5 g and when placed in water displaces the volume from 4.5mL to 11.8mL? ro
KengaRu [80]

Answer:

\rho =0.9g/mL

Explanation:

Hello,

In this case, due to the volume displacement caused the by the object's submersion, it's volume is:

V=11.8mL-4.5mL=7.3 mL

In such a way, considering the mathematical definition of density, it turns out:

\rho =\frac{m}{V}=\frac{6.5g}{7.3mL}\\  \\\rho =0.89g/mL

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4 years ago
Density is d= m/vol. If a material has a mass of 65.5 g and a volume of 32.5 ml, it has a density of
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<h3>Calculating Density </h3>

From the question, we are to determine the density of the material

From the given formula

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Hence, the density of the material is 2.015 g/mL.

Learn more on Calculating density here: brainly.com/question/24772401

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Why are valence electrons important?
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They are the outer layer of the electron layers.
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