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alukav5142 [94]
2 years ago
15

Which does not describe the relationship between the nucleus and the electron cloud of an atom?

Chemistry
2 answers:
trapecia [35]2 years ago
5 0

Answer: b. the masses of the nucleus and electron cloud are balanced.

Explanation:

1) From J.J. Thompson plum pudding model of the atom, and thereafter, it is know the the mass of the electrons are much, much smaller than the mass of an atom.

2) Also, from Ernest Rutherford gold foil experiment, it was determined that the atom consisted of a small and heavy positvely charged nucleus surrounded by electrons.

3) As per the scientific evidence, the current atom model (quantum model) we know that:

a. It is true that the electron cloud takes up much more space than the nucleus: the electrons are in regions called orbitals which are around the tiny nucleus.

b. It is not true that the masses of the nucleus and electron cloud are balanced: the relative masses of protons, neutrons and electrons are:

1 : 1 : 1 / 1840.

Which means that the nucleous contains almost all the mass of the atom.

c. It is true that the electrons move much faster than the particles in the nucleus: the particles in the nucleous stand in a very reduced space whose motion is only vibrational, while the electrons move rapidly i n the orbitals.

d. It is true that the charges of the nucleus and electron cloud are balanced: the atom is neutral because the positive charges of the nuclous equals the negative charges of the electrons.

rusak2 [61]2 years ago
4 0
I think the correct answer among the choices is option B. The statement which does not describe the relationship between the nucleus and the electron cloud of an atom will be that the <span> masses of the nucleus and electron cloud are balanced.</span>
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Sometimes people do not want to change their belief regardless of the evidence.
bagirrra123 [75]

Answer:

True

Explanation:

Ex. People against vaccines tend to believe crazy theories over facts because they think they'll end up brainwashing them.

6 0
2 years ago
1. What mass of Mgo will I make from 48 g of Mg?<br> 2Mg + O2 + 2MgO
statuscvo [17]

Answer:

80.6 g

Explanation:

MgO=24.3+16=40.3 g

48.6/24.3= 2 moles

64/2x16= 2 moles

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8 0
2 years ago
How do scientists think that gravity affected the formation of our solar system?
Makovka662 [10]
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5 0
3 years ago
Phosgene (COCl2) is a toxic substance that forms readily from carbon monoxide and chlorine at elevated temperatures: CO(g) + Cl2
lapo4ka [179]

Answer: Concentration of CO = 0.328 M

Concentration of Cl_2 = 0.328 M

Concentration of COCl_2 = 0.532 M

Explanation:

Moles of  CO and Cl_2 = 0.430 mole

Volume of solution = 0.500 L

Initial concentration of CO and Cl_2  =\frac{moles}{volume}=\frac{0.430}{0.500}=0.860M

The given balanced equilibrium reaction is,

                            CO(g)+Cl_2(g)\rightleftharpoons COCl_2(g)

Initial conc.          0.860M     0.860M           0

At eqm. conc.    (0.860-x) M  (0.860-x) M     (x) M

The expression for equilibrium constant for this reaction will be,

K_c=\frac{[COCl_2]}{[CO][Cl_2]}

Now put all the given values in this expression, we get :

4.95=\frac{x}{(0.860-x)^2}

By solving the term 'x', we get :

x =  0.532 M

Thus, the concentrations of CO,Cl_2\text{ and }COCl_2 at equilibrium are :

Concentration of CO = (0.860-x) M =(0.860-0.532) M = 0.328 M

Concentration of Cl_2 =  (0.860-x) M  =  (0.860-0.532) M = 0.328 M

Concentration of COCl_2 = x M = 0.532 M

3 0
3 years ago
Do you think that all foods containing carbohydrates are healthful? Explain plz:(
deff fn [24]

Answer:

Yes

Explanation:

because some foods have carbohydrates but are healthy

8 0
3 years ago
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