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pychu [463]
3 years ago
10

How are isotopes defined?

Chemistry
2 answers:
Setler79 [48]3 years ago
5 0

Answer: it forms of the same element that differ in the number of neutrons in each atom.

or letter c. if on edg

thank me later XD

Alla [95]3 years ago
3 0
Isotopes are atoms with the same number of protons and electrons but different number of neutrons.

Extra for better understanding:
Thus, the relative atomic mass (Ar) differs amongst the isotope. For example, Chlorine have 2 main isotopes with Ar of 35 and 37. The chemical property of the isotopes is the same but the physical property such as boiling point may change.
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3. Please fill in the following chart:
hodyreva [135]

What do you mean by fill?

What do you mean?

I'm confused

6 0
3 years ago
Atoms form chemical bonds to satisfy the rule and to become .
soldi70 [24.7K]

Answer: Atoms form chemical bonds to satisfy the<u> Octet</u> rule and to become <u>stable.</u>

Explanation:

The tendency of atoms to attempt to get a noble gas configuration that is eight valence electrons is said to be octet rule.  This is done to attain noble gas configuration and stability.

In order to attain stability the atoms tends to have eight electrons in its valence shell which can be obtained by either by sharing of electrons or complete transfer of electrons.

For example : As we know that the sodium has one valence electron, so if giving it up then the result in the same electron configuration as the neon and chlorine has seven valence electrons, so if it takes one it will have eight and the result in the same electronic configuration as the argon which is stable.

4 0
4 years ago
What is the molarity of a solution in which 102 grams of aluminum oxide, Al2O3, is
irga5000 [103]

Answer:

2.00 M

Explanation:

The formula mass of aluminum oxide is 2(27)+3(16)=102 g/mol.

So, there is 1 mole of solute in 500 mL=0.5 L of solution

Now, we can use the equation molarity = (moles of solute)/(liters of solution)

  • molarity = 1/0.5 = <u>2.00</u><u> </u><u>M</u>
6 0
2 years ago
Given a force of 100.00 N and an acceleration of 5 m/s2, what is the mass of the object?
melisa1 [442]

Answer:

<h2>20 kg</h2>

Explanation:

The mass of the object can be found by using the formula

m =  \frac{f}{a}  \\

f is the force

a is the acceleration

From the question we have

m =  \frac{100}{5}  = 20 \\

We have the final answer as

<h3>20 kg</h3>

Hope this helps you

6 0
3 years ago
A mole of anything is how many of that thing?
ikadub [295]

1 mole is equal to the atomic mass of the element/compound in grams

7 0
3 years ago
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