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
salantis [7]
3 years ago
8

What was the significance of Thompson’s Plum Pudding model of the atom?

Chemistry
1 answer:
Pani-rosa [81]3 years ago
6 0

The Plum Pudding Model is a model of atomic structure proposed by J.J. Thomson in the late 19th century. Thomson had discovered that atoms are composite objects, made of pieces with positive and negative charge, and that the negatively charged electrons within the atom were very small compared to the entire atom.


You might be interested in
Ga3+ and Br1- is what formula?
Sladkaya [172]

\text{GaBr}_3

8 0
2 years ago
How do you sort bonds by polarity
zzz [600]
Your question isn't quite clear, but if you're wondering if a chemical is polar or non-polar, you simply draw a VSEPR sketch and draw arrows where the bonds are. Only draw arrows between atoms, NOT between an atom and a lone pair of electrons. The arrow should point to the most electronegative atom (you should be given an electronegativity scale). Afterwards, you add up the arrows as vectors, and look at the sum of the vectors. If the sum is zero (CH4 is a good example), the chemical is non-polar. If the sum is a vector, the chemical is polar (H2O, or water, is polar).
7 0
3 years ago
Identify the oxidizing agent and the reducing agent for 4Li(s) + O_2 (g) to 2Li_2O(s).
wolverine [178]

Answer: Li is the reducing agentg and O is the oxidizing agent.

Explanation:

1) The oxidizing agent is the one that is reduced and the reducing agent is the one that is oxidized.

2) The given reaction is:

4Li(s) + O₂ (g) → 2 Li₂O(s)

3) Determine the oxidation states of each atom:

Li(s): oxidation state = 0 (since it is alone)

O₂ (g): oxidation state = 0 (since it is alone)

Li in Li₂O (s) +1

O in Li₂O -2

That because 2× (+1) - 2 = 0.

4) Determine the changes:

Li went from 0 to + 1, therefore it got oxidized and it is the reducing agent.

O went from 0 to - 2, therefore it got reduced and it is the oxidizing agent.

7 0
3 years ago
Read 2 more answers
In which of the following sets are the charges given correctly for all the
Ronch [10]

Answer:

B) K⁺, Sr²⁺ , O²⁻

Explanation:

Potassium is present in group one. It is alkali metal and have one valance electron.Potassium need to lose its one valance electron and form cation to get complete octet.

That's why it shows K⁺.

Sr is alkaline earth metal. It is present in group two. It has two valance electrons. Strontium needed to lose its two valance electrons and get stable electronic configuration.

When it loses its two valance electrons it shows cation with charge of +2.

Sr²⁺

Oxygen is present in group 16. It has sex valance electrons. It needed two more electrons to complete the octet. That's why oxygen gain two electron and form anion with a charge of -2.

O²⁻

3 0
3 years ago
Another simple question and I need it bad
podryga [215]
Oh this is extremely hard...i might just die lol jk its the last one measuring cylinder :)
3 0
2 years ago
Read 2 more answers
Other questions:
  • What happens in nuclear fusion?
    8·2 answers
  • Balance the below half-reaction, which takes place in acidic solution. cr2o72−(aq) → cr3 (aq) how many electrons are transferred
    5·1 answer
  • What happens when the electron moves from the first energy level to the second energy level?
    9·1 answer
  • What is meant by the term polar molecule
    14·2 answers
  • Lab: Environmental Changes in a Watershed<br> Lab Report Essay please!:)
    6·1 answer
  • Amphiphilic molecule: ___________
    14·1 answer
  • When the distance from one object to another is changing the object is said to be in
    6·1 answer
  • A heliox deep-sea diving mixture contains 2.0 gg of oxygen to every 98.0 gg of helium. What is the partial pressure of oxygen wh
    7·1 answer
  • ___1___Zn + __2___HCl → ___1___H2 + ____1__ZnCl2
    12·1 answer
  • Use the drop-down menus to name these structures<br> F<br> FICH<br> H
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!