These models show the electron structures of two different nonmetal elements.Which element is likely more reactive, and why?

A.) Element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table.

B.) Element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table.

C.) Element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons.

D.) Element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

Answers

Answer 1

Answer:

Answer: Option (D) is the correct answer.

Explanation:

Valence shell is the shell present on the outermost core of an atom and electrons present in the valence shell are known as valence electrons.

If an atom has completely filled valence shell then it means the atom is not reactive in nature because it is already stable.

But when an atom has less than eight electrons in its valence shell then it means to attain stability the atom will readily attract electrons towards itself.

As the given element 1 has 8 electrons in its valence shell. Hence, it is not reactive in nature but element 2 has 6 valence electrons. So, in order to attain stability element 2 will readily attract 2 electrons from a donor atom.

Thus, we can conclude that element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

Answer 2

Answer:

Answer:

Its D

Explanation:

I got it right on the test

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A mixture of He, Ne, and N2 gases are a pressure of 1.348. If the pressures of He and Ne are 0.124 atm, what is the partial pressure of N2 in the mixture ?

Answers

Answer : The partial pressure of $N_2$ in the mixture is, 1.224 atm

Solution :

According to the Dalton's law, the total pressure of the gas is equal to the sum of the partial pressure of the mixture of gasses.

$P_T=p_(He)+p_(Ne)+p_(N_2)$

where,

$P_T$ = total partial pressure of $He,Ne\text{ and }N_2$ = 1.348 atm

$P_(He)$ = partial pressure of helium

$P_(Ne)$ = partial pressure of neon

$P_(N_2)$ = partial pressure of nitrogen

As we are given that,

$P_(He)+P_(Ne)=0.124atm$

Now put all the given values in above expression, we get the partial pressure of the nitrogen gas in the mixture.

$1.348atm=0.124atm+p_(N_2)$

$p_(N_2)=1.224atm$

Therefore, the partial pressure of $N_2$ in the mixture is, 66 Kpa

The Best Answer: 1 - (.47+.23) = 0.30

If Ne has a mole fraction of 0.47 (or 47/100) and Ar is 0.23, then H2(or He) has a mole fraction of 0.30

This means the gas mixture is 30/100 H2(or He).

7.85 x 0.30 = 2.355 atm

Is 2 pounds bigger than 80 ounces

Answers

no because 2 pounds only equals 16 ounces times 2 so it equals 32 ounces which is not bigger than 80

no because 2 pounds is 16

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The groundhogs are hibernating.

The groundhogs migrated.

The groundhogs have died out.

The groundhogs are gathering food.

Answers

Answer:

The groundhogs are hibernating.

Explanation:

Groundhogs hibernate during the winter months and don't come out of their burrows.

The groundhogs are hibernating, during winter

Which is a difference between global and local winds?

Answers

Explanation:

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Answer:

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Explanation:

According to the following position vs. Time graph the bicyclist wasA) moving at a constant speed for the first 2 seconds, then began to speed.

B) not moving for the first 2 seconds, then begin moving and continue to gain speed.

C) slowing down for the first two seconds, then begin moving at a constant speed.

D) not moving for the first two seconds, then begin moving at the constant speed.

Answers

Answer:

According to the following position vs. Time graph the bicyclist was : D

D. Not moving for the first two seconds, then begin moving at the constant speed.

Explanation:

$Speed = (Distance)/(time)$

Along Y-axis = Distance in meters

Along X-axis = Time taken in second

For first 2 seconds the The object has not changed its position.There is Zero distance covered.So , Speed = 0
After 2 second,The Object changed the distance by equal amount in equal interval of time.(Uniform Speed).Hence at each point after 2 second, there is same value speed

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Answers

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