Answer:
is what a model answer key
Answer:
Check explanation section.
Explanation:
Isotopes are chemical species of the same elements with different number of neutrons but the same protons.
Both Chlorine-35 and Chlorine-36 are the same because they are both isotopes of the same elements that is Chlorine. Also, both Chlorine-35 and Chlorine-36 have the same number of protons which has the value equal to 17.
The difference between Chlorine-35 and Chlorine-36 is that Chlorine-35 is stable and has the abundance of 75.77% whole Chlorine-36 is found in trace.
Also Chlorine-35 has a neutrons value of 18 while that of Chlorine-36 is 19.
Answer:
1.7x10²³ Fluorine atoms are present
Explanation:
To solve this question we must know that, to find the amount of atoms of a substance from its mass, we have, as first, to convert this mass to moles using molar mass of the substance. With the moles we can find the amount of molecules using Avogadro's number. And with the formula we can know the atoms presents:
<em>Moles Fluorine (F₂, Molar mass: 37.997g/mol)</em>
5.3g * (1mol / 37.997g) = 0.139 moles F₂
<em>Molecules F₂:</em>
0.139 moles F₂ * (6.022x10²³molecules / mol) = 8.4x10²² molecules F₂
As 1 molecule of F₂ contains 2 atoms of Fluorine:
8.4x10²² molecules F₂ * 2 =
<h3>1.7x10²³ Fluorine atoms are present</h3>
The values of N, log N and ln N are all worked out below.
We have the number N as 8.99
hence;
1) lnN = ln(8.99) = 2.196
log N = log (8.99) = 0.954
2) If we have ln N as 3.949
N = e^3.949 = 51.88
So;
log N = log (51.88) = 1.715
3) log N = 0.134
N = Antilog (0.134 ) = 1.36
ln N = ln (1.36) = 0.307
Learn more: brainly.com/question/4210362
