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Yuki888 [10]
3 years ago
5

Which subatomic particle plays the greatest part in determining the properties of an element?

Chemistry
2 answers:
Ostrovityanka [42]3 years ago
8 0
The subatomic particle that plays the greatest role in determining the physical and chemical properties of an element is the electron. The electron has <span> symbol </span><span>e− </span><span>or </span><span>β− </span><span>with a negative </span>elementary electric charge<span>. Thank you for posting your question here. I hope the answer helps. </span>
Kobotan [32]3 years ago
8 0

Answer:

Proton

Explanation:

We know that atomic number is equal to proton number.

If we know the proton number then we  can determine the atomic number  and number of electrons.

Because number of protons=Number of electrons.

If we know that atomic number then we can determine the electronic configuration.

We can determine valency of an element by determining outer  electronic configuration.

If we know electronic configuration then we can know that the element from which period and group belongs.

Hence, the proton particle plays the greatest part in determining the properties of an element.

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What is the mass of a bar of aluminum with length 5.3cm, width 0.32 cm and height 2.34cm? The density of aluminum is 2.70g/cm3.
Tatiana [17]

Answer:

<h2>mass = 10.72 g</h2>

Explanation:

Density of a substance can be found by using the formula

Density =  \frac{mass}{volume}

Making mass the subject we have

mass = Density \times volume

From the question

Density = 2.70 g/cm³

We assume that the aluminum is a cuboid

and volume of a cuboid is given by

Volume = length × width × height

length = 5.3 cm

width = 0.32 cm

height = 2.34 cm

Volume = 5.3 × 0.32 × 2.34 = 3.97 cm³

Substitute the values into the above and solve for the mass

We have

mass = 2.70 × 3.97

We have the final answer as

<h3>mass = 10.72 g</h3>

Hope this helps you

6 0
3 years ago
Does anyone have the data table answers for 8.03 - Solutions Lab Report?
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<h3>How to depict the laboratory report?</h3>

Your information is incomplete. Therefore, an overview of a laboratory report will be given. The laboratory report is important for future studies a d experiments.

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