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Effectus [21]
3 years ago
9

Which statement best describes an electron

Chemistry
2 answers:
myrzilka [38]3 years ago
7 0

<u>Answer:</u> The correct answer is Option 1.

<u>Explanation:</u>

There are three subatomic particles in an atom. They are: electrons, protons and neutrons.

  • <u>Protons:</u> They carry positive charge and are found in nucleus.
  • <u>Electrons:</u> They carry negative charge and are found around the nucleus.
  • <u>Neutrons:</u> They dos not carry any charge and are found in nucleus.

Mass of protons and neutrons are almost same and they both contribute to the mass of an atom.

Mass of electrons is very negligible as compared to protons and neutrons.

Masses of the subatomic particles:

Mass of protons = 1.007276 u

Mass of neutrons = 1.008664 u

Mass of electrons = 0.00054858 u

Hence, the correct answer is Option 1.

andrew11 [14]3 years ago
5 0

The best statement that describes electron is: it has a smaller mass than a proton and a negative charge. The correct answer is option 1.

There are 3 main subatomic particles that form an atom, and these include protons, neutrons, and electrons.

<h2>Further Explanation</h2>

Protons are positively charged and can be found in the nucleus of an atom (the nucleus is the center of an atom). They are usually represented with a + sign

Neutrons do not have any charge and are also found within the nucleus of an atom. In other words, they possess no electrical charge. They are also very important within the nucleus as it helps to hold the protons together.

All protons within the center of an atom are identical to each other and the same is for the protons.

Electrons are tiny particles that orbits around the nucleus. Electrons are negatively charged and it was the first subatomic particles to be discovered.

Proton and neutrons are of almost the same mass but their mass is massive compared to that of an electron. The mass of both protons and neutrons is about 2000 times the mass of electrons.

Therefore, the best statement that describes electrons is that it has a smaller mass than a proton and a negative charge.

LEARN MORE:

  • Which statement best describes electrons?  brainly.com/question/1021647
  • Which statement best describes an atom?  brainly.com/question/2837363

KEYWORDS:

  • proton
  • electron
  • negative
  • mass
  • subparticles
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Alexxandr [17]

Answer:

testable questions are answer through observation or an experiment that provides evidence that the questions connects to the scientific concepts rather the opinion feelings

therefore the question can be tested through observation or experiment

7 0
3 years ago
4. Identify each substance in the following word equation as a reactant or a product
dolphi86 [110]

Explanation:

4.                 limestone heat lime + carbon dioxide

The reactants in this expression above is limestone

The products of the reaction is carbon dioxide and lime

Reactant is the species that gives the product and it is usually found on the left hand side of the expression.

The product is the substance on the right hand side of the expression that forms through the experiment.

Heat is used to facilitate the reaction.

5. An exothermic reaction is a reaction in which heat is given off.

An endothermic reaction is a reaction in which heat is absorbed in the process.

An exothermic reaction is always warmer after the reaction whereas an endothermic reaction is colder at the end of the reaction.

6.  Sodium salicylate is made from carbon dioxide and sodium phenoxide.

The reactants are:

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The product is:

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8 0
3 years ago
How much money will it cost to drive a school bus 94.00 miles if it gets 6.500 miles per gallon and gas costs $2.459/gallon?​
bagirrra123 [75]

Answer:

It will cost $35.5602

Explanation:

$2.459 /6.5 (mpg) = 0.3783 (cents per mile)

$0.3783 (cost per mile) * 94 (total miles) = $35.5602 total

6 0
2 years ago
Which of the four substances listed will dissolve in water and why?
Orlov [11]

Answer:

Sugar, sodium chloride, and hydrophilic proteins are all substances that dissolve in water. Oils, fats, and certain organic solvents do not dissolve in water because they are hydrophobic.

And, water is called the "universal solvent" because it dissolves more substances than any other liquid. ... Water molecules have a polar arrangement of the oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge.

I don't see any options so there i hope it helps .

7 0
3 years ago
Calculate the time it takes for an object moving with a speed of 13m/s to travel 50 m
kykrilka [37]

Answer:

<h3>The answer is 3.85 s</h3>

Explanation:

The time taken can be found by using the formula

t =  \frac{d}{v}  \\

d is the distance covered

v is the velocity

From the question we have

t =  \frac{50}{13}  \\  = 3.846153...

We have the final answer as

<h3>3.85 s</h3>

Hope this helps you

7 0
3 years ago
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