answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
djverab
1 month ago
12

Which atomic models in task 1 are not supported by Thomson’s experimental evidence? For each of these models, explain the experi

mental results that the model would predict.
Chemistry
2 answers:
eduard [2.7K]1 month ago
8 0

Answer:

To investigate the characteristics of the particles, Thomson positioned two electric plates with opposite charges around the cathode ray. The ray bent away from the negatively charged plate and moved towards the positively charged one, showing it contained negatively charged particles.

He also introduced magnets on either side of the tube, which caused the cathode ray to deflect. These findings allowed Thomson to calculate the mass-to-charge ratio of the ray's particles, revealing that their mass was far smaller than any atom known. Repeating the tests with various cathode metals demonstrated that the cathode ray's properties remained unchanged regardless of the metal used. Based on this data, Thomson concluded:

The cathode ray consists of negatively charged particles.

These particles exist within atoms, as their mass is roughly 1/2000 that of hydrogen atoms.

They are present in atoms of all elements.

Although initially debated, Thomson's findings gained acceptance and his identified particles became known as electrons. This discovery disproved Dalton's idea that atoms were indivisible and prompted the need for a new atomic model.

Explanation:

VMariaS [2.9K]1 month ago
6 0

Answer:

Dalton's atomic theory and Rutherford's atomic model

Explanation:

These models differed in their assumptions:

Thomson's experiments revealed atoms contain tiny negatively charged particles named electrons.

Conversely, Rutherford's gold foil experiment led to the understanding that atoms mostly consist of empty space with a dense, positively charged nucleus.

Dalton believed that atoms were the smallest indivisible units of matter, a view that prevailed until discovering subatomic particles within atoms.

You might be interested in
Cathodic protection of a metal pipe against corrosion usually entails __________.
VMariaS [2932]

Answer:

C. connecting an active metal to designate the pipe as the cathode in an electrochemical cell.

Explanation:

Cathodic protection involves a method to manage the accelerated corrosion of a metal surface by designating it as the cathode within an electrochemical cell. This is accomplished by attaching the protected metal to a more sacrificial metal, which acts as the anode.

This method helps to preserve the metal by introducing a highly reactive metal that serves as the anode, supplying free electrons. By adding these free electrons, the active metal gives up its ions, protecting the less reactive steel from corrosion.

3 0
1 month ago
A piece of iron metal is heated to 155 degrees C and placed into a calorimeter that contains 50.0 mL of water at 18.7 degrees C.
VMariaS [2932]
Jsjsjsdjdjkdskkeekdks probably answer a
3 0
1 month ago
Read 2 more answers
A compound composed of only carbon and chlorine is 85.5% chlorine by mass. propose a lewis structure for the lightest of the pos
lions [2866]

The visual representation is displayed in the following image.

For calculations, consider 100 grams of the compound:

ω(Cl) = 85.5% ÷ 100%.

ω(Cl) = 0.855; signifying the mass percentage of chlorine in the compound.

m(Cl) = 0.855 · 100 g.

m(Cl) = 85.5 g; this represents the mass of chlorine.

m(C) = 100 g - 85.5 g.

m(C) = 14.5 g; indicating the mass of carbon.

n(Cl) = m(Cl) ÷ M(Cl).

n(Cl) = 85.5 g ÷ 35.45 g/mol.

n(Cl) = 2.41 mol; this is the quantity of chlorine.

n(C) = 14.5 g ÷ 12 g/mol.

n(C) = 1.21 mol; this is the quantity of carbon.

n(Cl): n(C) = 2.41 mol: 1.21 mol = 2: 1.

The compound in question is identified as dichlorocarbene CCl₂.

4 0
1 month ago
Read 2 more answers
Which of the following statements concerning the process of spontaneous folding of proteins is false?
KiRa [2904]

Answer:

(A) It can be a fundamentally arbitrary process.

Explanation:

In various human disorders, the natural process of protein folding may malfunction, generally beginning with the formation of a very compact state. This process may also include a systematic decrease in the variety of conformational states and the initial creation of localized structures. Thus, option (A) is the only incorrect statement.

8 0
1 month ago
Read 2 more answers
In NMR spectroscopy, the strong magnetic field establishes an energy gap between the alpha and beta spin states, which enables t
Anarel [2896]

Answer:

In the context of NMR spectroscopy, a significant magnetic field creates an energy difference between the alpha and beta spin states, which allows nuclei to absorb RF radiation, ultimately leading to the excitation of a nucleus from a +1/2 spin state to a -1/2 spin state.

Explanation:

3 0
1 month ago
Other questions:
  • (a) calculate %ic of the interatomic bonds for the intermetallic compound al6mn. (b) on the basis of this result what type of in
    15·1 answer
  • How would you convert 500cc of 2M H2SO4 into g/l?​
    14·2 answers
  • A neutral isotope has 45 neutrons and 36 electrons. Identify the element symbol of this isotope and determine the mass number an
    8·1 answer
  • If the balloon described in Question 10.24 is released into the air and rises to an altitude of 10,000 ft where the atmospheric
    12·1 answer
  • What phenomenon in nature do scientists use to define the length of a meter? Why is this a better definition than “the length of
    8·1 answer
  • Arbon dioxide is dissolved in blood (ph 7.5) to form a mixture of carbonic acid and bicarbonate. Part a neglecting free co2, wha
    9·2 answers
  • According to reference table adv-10, which reaction will take place spontaneously?
    8·1 answer
  • Can one atom in this type of reaction win the "tug of war"? What might happen if it did?
    10·2 answers
  • It requires 0.0780L of a 0.12 M HCl solution to completely neutralize 0.0280L of an unknown LiOH solution. What is the concentra
    10·1 answer
  • Calculate the mass of hydrazine (N2H4) that contains a billion (1.000 x 10^9) hydrogen atoms.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!