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Sergio039 [100]
3 years ago
8

One way in which elements differ from each other is the structure of the electron cloud in each elements Atoms in electron cloud

an electron that is farther away from the nucleus has
Chemistry
2 answers:
Bond [772]3 years ago
5 0

The question is incomplete, the complete question is:

One way in which elements differ from each other is the structure of the electron cloud in each element’s atoms. In an electron cloud, an electron that is farther away from the nucleus has

a greater charge than an electron near the nucleus.

a smaller charge than an electron near the nucleus

a higher energy than an electron near the nucleus.

a lower energy than an electron near the nucleus.

Answer:

a higher energy than an electron near the nucleus.

Explanation:

Energy levels increase outwards from the nucleus. An electron that is nearest to the nucleus is said to be in its ground state, this is the lowest energy state of that electron. As we move outwards from the nucleus, the energy levels increase progressively. Hence, the farther electrons are from the nucleus, the greater their energy level and the greater the energy of the individual electrons.

BartSMP [9]3 years ago
4 0

Not sure what you are asking. I have two possible answers though...

It could either be more negatively charged, or valence electrons.

The more away from the nucleus a electron is, the more negatively charged it is.

The electrons on the outermost electron shell is valence electrons.

Again, I don't know what you were asking, but one of these answers may be correct.

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A 1 liter solution contains 0.247 M nitrous acid and 0.329 M sodium nitrite. Addition of 0.271 moles of calcium hydroxide will:
Inessa05 [86]

Answer:

a. Raise the pH slightly

Explanation:

We know that

Pka of HNO2/KNO2 =3.39

Moles of HNO2 in the buffer=0.247 mol/L×1L=0.247 moles

Moles of NO2-=0.329mol/L×1L=0.329 moles

If 0.271 moles of Ca(OH)2 is added it will neutralise 0.136 moles of acid ,HNO2,remaining HNO2=0.247-0.136=0.111 moles

Moles of NO2- will increase as 0.0333 moles Ca(NO)2 will be formed =0.0333+0.036=0.0693 moles

pH=pka+log [base]/[acid]      {henderson -hasselbach equation}

=3.39+log (0.0693/0.0317)=3.39+0.34=3.73

pH=3.73

4 0
3 years ago
What form of energy causes an ice cube to melt
zalisa [80]

Answer:

Thermal

Explanation:

When something heats up its atoms become further apart making it melt when something heats up or gets heat or loses heat that's thermal energy

6 0
3 years ago
A 475 cm3 sample of gas at standard temperature and pressure is allowed to expand until it occupies a
Andrej [43]

The final temperature : 345 K

<h3> Further explanation </h3>

Given

475 cm³ initial volume

600 cm³ final volume

Required

The final temperature

Solution

At standard temperature and pressure , T = 273 K and 1 atm

Charles's Law  :

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

V₁/T₁=V₂/T₂

Input the value :

T₂=(V₂T₁)/V₁

T₂=(600 x 273)/475

T₂=345 K

4 0
3 years ago
Which of the following is NOT a binary molecular compound?<br> KI <br> H2s<br> CO<br> CIF3
shutvik [7]
I believe KI is not a a binary molecule.
Your welcome
7 0
3 years ago
Which of the following statements are correct? More than one answer may be correct.
garri49 [273]

Answer:

E, only one statement is correct

Explanation:

Absorption is favoured by heating the solution containing the colored impurity.

Pleaseee! Mark me brainliest

4 0
2 years ago
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