1answer.
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
horsena [70]
3 years ago
12

Which answer choice best describes why the results of Ernest Rutherford's gold foil experiment led him to propose the concept of

a nucleus? A.) The positively charged alpha particles were deflected more often than expected, which indicated that the gold atoms' negative charges were located at the center of each atom. B.) The positively charged alpha particles were deflected less often than expected, which indicated that the gold atoms' negative charges were not evenly distributed throughout each atom. C.) The positively charged alpha particles were deflected less often than expected, which indicated that the gold atoms' positive charges were located around the outside of each atom. D.) The positively charged alpha particles were deflected more often than expected, which indicated that the gold atoms' positive charges were not evenly distributed throughout each atom.
Chemistry
2 answers:
mixas84 [53]3 years ago
8 0
<h3><u>Answer;</u></h3>

D.) The positively charged alpha particles were deflected more often than expected, which indicated that the gold atoms' positive charges were not evenly distributed throughout each atom.

<h3><u>Explanation</u>;</h3>
  • <em><u>During the experiment, alpha particles bombarded a thin piece of gold foil. The alpha particles were expected to pass easily through the gold foil. Every now and then, however, an alpha particle bounced back- an unexpected result. Rutherford concluded that these particles were striking a tiny region of positive charge.</u></em>
  • The discovery of the nucleus was a result of Rutherford's observation that a small percentage of the positively charged particles bombarding the metal's surface were deflected back towards the source.
  • He concluded that each atom contained a very small, very dense, positively charged center which he called the nucleus.
hammer [34]3 years ago
3 0

Answer:

D

Explanation:

The positively charged alpha particles were deflected more often than expected, which indicated that the gold atoms' positive charges were not evenly distributed throughout each atom.

You might be interested in
Can someone help me understand what 1b is asking and how to answer it?
icang [17]
The question is basically asking what is happening to the energy (that is in the form of heat) when it is being absorbed by an object.  The energy being absorbed from the heat source is being turned into kinetic energy.  This can be explained by temperature change.  As you add more heat to an object, the temperature rises.  Since temperature is the average kinetic energy of all of the molecules in an object, we can say that as temperature rises so does the kinetic energy of the molecules in the object.  Due to the fact that heat is causing the temperature to increase, we can say that the energy from the heat is being turned into kinetic energy.  

I hope this helps.  Let me know in the comments if anything is unclear.
5 0
3 years ago
Would fluorine form a positive or a negative ion?
IceJOKER [234]
It would form a negative ion... it lacks 1 e in its valence shell., it is easier for F to accept an e than to shed all existing 7.
e= electron
8 0
3 years ago
Do all objects emit electromagnetic waves?
kherson [118]

Answer:

no, not all objects emit electromagnet waves.

Explanation: because lets say the object is carpet it has no magnetic waves in it so not all objects do.

6 0
3 years ago
Nick hypothesizes that wax has a higher melting point than chocolate how can he test his hypothesis
LUCKY_DIMON [66]
Melt chocolate and measure the temperature and then melt wax and measure the temperature and compare his results.
5 0
3 years ago
Three mixtures were prepared from three very narrow molar mass distribution polystyrene samples with molar masses of 10,000, 30,
8_murik_8 [283]

Answer:

(a). 46,666.7 g/mol; 78,571.4 g/mol

(b). 86950g/mol; 46,666.7 g/mol.

(c). 86950g/mol; 43,333.33 g/mol

Explanation:

So, we are given the molar masses for the three samples as: 10,000, 30,000 and 100,000 g mol−1.

Thus, the equal number of molecule in each sample = ( 10,000 + 30,000 + 100,000 ) / 3 = 46,666.7 g/mol.

The average molar mass = [ ( 10,000)^2 + (30,000)^2 + 100,000)^2] ÷ 10,000 + 30,000 + 100,000 = 78,571. 4 g/mol.

(b). The equal masses of each sample = 3/[ ( 1/ 10,000) + (1/30,000 ) + (1/100,000) ] = 20930.23 g/mol.

Average molar mass = ( 10,000 + 30,000 + 100,000 ) / 3 = 46,666.7 g/mol.

(c). Equal masses of the two samples = (0.145 × 10,000) + (0.855 × 100,000)/ 0.145 + 0.855 = 86950g/mol.

The weight average molar mass = 1.7 + 10,000 + 100,000/ 1.7 + 1 = 43,333.33 g/mol.

6 0
3 years ago
Other questions:
  • What could be the potential benefits of<br> atomic-scale medicine delivery systems?
    9·1 answer
  • The crystals that form in a magma that cools more slowly than those from another magma will be _________.
    5·2 answers
  • You have 1169.6 g of a bleach solution. The percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%. How many grams o
    10·2 answers
  • 3. What can you conclude about Gregor Mendel from the
    6·1 answer
  • Please answer this please don't answer if you don't know it thank you D.<br>look at the picture​
    14·1 answer
  • How many atoms are in a 158.69 g sample of nickel?
    11·1 answer
  • You observe mothballs disappearing in cabinets. What do you think is the reason for this? Do all substances behave like mothball
    5·1 answer
  • I am lost someone help me!!
    14·2 answers
  • Explain how nutrients are cycled in a food chain.
    6·2 answers
  • Can someone pls help with the first two fill in the blanks
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!