How are elements identifies in terms of their atoms?

Answers

Answer 1
Answer: they are identified by the number of protons they have in the nucleus which = their electrons. 
Answer 2
Answer: protons,neutrons,electrones,mass number and model are a few.
i hope this helped

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What does sound travel through to reach our ears?

Answers

By a series of vibrations produced by an object. When an object produces sound, the sound waves travel and reach the ears. :)
sound travels through different mediums to reach our ears, depending on your position.
Sound can travel through water in the form of vibrations, and it can travel through the atmosphere, that is, the air, to reach our ears. It travels faster in gas(air).

Describe erosion in your own words

Answers

Answer:

the action of becoming destroyed and removed via air, rain, or even other natural phenomena

Explanation:

Which of the following is an example of a model?A. The solar system
B. A globe
C . A planet
D. A padlock

Answers

The answer is B a globe
Hope this helped

B: a globe
You can see the fratures of the planet & the names as well all depending WHICH globe you get

For each cycle,explain how humans actions have altered or disrupted the cyclewater cycle:

carbon cycle:

nitrogen cycle:

Answers

Water Cycle- we interrupt the flow of water by withdrawal (taking the water out of its natural system to carry out industrial processes, irrigation and to provide drinking water. Discharging also affects the flow of water, whether intentionally or not. By adding chemicals to the water, it pollutes the water and can cause damage not only to organisms but to the environment.

Carbon Cycle - humans greatly affect carbon cycle by immense deforestation activity, which increase the carbon dioxide content in the atmosphere and also the burning of coals, which also increase the carbon content in the surrounding which will result to global warming.

Nitrogen Cycle - one of the major influences of humans in the nitrogen cycle is evident in agriculture. Farmers attempt to increase the availability of nitrogen to the land which is essential to the plants that is why they add nitrogen-containing fertilizers.This results to the larger rate of nitrogen input than occurs naturally through nitrogen fixation processes.

Is moss a decomposer?

Answers

Yes. Moss IS a decompose because it breaks down dead plants and turns them into nutrients. It does not harm other plants while it goes through this process

Which term represents a type of nuclear reaction?(1) condensation
(2) vaporization
(3) single replacement
(4) natural transmutation

Answers

Answer: The correct answer is Option 4.

Explanation:

Nuclear reaction is defined as the reaction in which change in nucleus takes place.

From the given options:

Option 1: Condensation

Condensation is defined as a physical process in which gaseous particles changes to liquid particles by decreasing temperature. No change in nucleus takes place.

Option 2: Vaporization

Vaporization is defined as a physical process in which liquid particles changes to gaseous particles by increasing temperature. No change in nucleus takes place.

Option 3: Single displacement reaction

Single displacement reaction is defined as the chemical reaction in which more reactive element displaces the less reactive element. No change in nucleus takes place.

Option 4: Natural transmutation

Natural transmutation is defined as the process as the conversion of one element into another element. An element is defined by its number of protons that is atomic number. If this process occurs anywhere, number of protons or neutrons is changed. Thus, this process will change in the nucleus.

Hence, the correct answer is Option 4.

\boxed{(4)\text{Natural transmutation}} represents a type of nuclear reaction.

Further Explanation:

A nuclear reaction is a term defined when there is a conversion of one nuclide into another. In this reaction, change in the nucleus of an atom is observed. When two nuclei and a subatomic particle undergo collision with each other and new nuclides are produced, nuclear reaction is said to take place. The interaction between the cosmic rays and matter is an example of natural nuclear reaction.

(1) Condensation

It is defined as the process by which a substance gets converted from its gaseous state to the liquid one. Changes in pressure and temperature are made in order to condense a substance. The dew that is observed on the green grass in the early morning is a natural example of the condensation process.

(2) Vaporization

It is a process of conversion of a substance from its liquid state to the gaseous or vapor state. It is also known as evaporation. It is a surface phenomenon. The recovery of salt from seawater is an example of vaporization in day to day life.

(3) Single replacement

It is a type of chemical reaction in which a more reactive element replaces a less reactive element. It is also known as a single displacement reaction. A general single-replacement is described as follows:

\text{A+BC}\rightarrow\text{AC}+\text{B}  

Here, A being more reactive displaces B from the compound BC and as a result, AC is formed.

(4) Natural transmutation

It is the process by which one element gets converted to another one. It usually takes place in unstable, radioactive elements that keep on decaying into several elements until a stable element is produced. Since transmutation brings about a change in the atomic nuclei, it is considered as a nuclear reaction.

Learn more:

  1. What nuclide will be produced in the given reaction? brainly.com/question/3433940
  2. Calculate the nuclear binding energy: brainly.com/question/5822604

Answer details:

Grade: Senior School

Chapter: Nuclear chemistry

Subject: Chemistry

Keywords: nuclear reaction, natural transmutation, condensation, vaporization, evaporation, single replacement, single displacement, A, B, AC, BC, surface phenomenon, atomic nuclei, unstable, radioactive.