I think the correct answer would be the third option. As the elements around the star begins to emit more and more electromagnetic radiation, the rocky materials are pulled in by the electromagnetic radiation. They are being drawn closer to the star and there would be a very high chance of a nuclear fusion could happen. The pressure and the temperature in a star is so high that it could allow nuclear fusion to happen. As a matter of fact, most of the life of a start is made from hydrogen nuclei fusing together forming a helium nuclei. As it runs out of the hydrogen nuclei, it would fuse other nuclei forming other elements.<span />
Hi. The first one is correct. They have no charge and are in located inside the nucleus.
Answer:
The line-angle structure is shown in the image below.
Explanation:
The line-angle formula is also known as the skeletal structure in which the carbon atoms are at the corners where the two lines showing bonds meet and also at the end of the limes.
Each carbon atom in these kind of structures are itself understood to be attached to the exact number of hydrogen atoms so that the octet of the carbon atoms is complete.
Given that:- The chemical formula of soap produced - 
The line-angle structure is shown in the image below.
Answer:
0.000399316 g
Explanation:
We can start with the <u>molar fraction</u> for each isotope:
We can say that the abudandance of
is an unknow value <u>"X"</u> and the molar fraction of
is <u>"Y"</u>. We have to keep in mind that the molar fractions can be added:
Y + X = 1
So, we can put the molar fraction of
in terms of
, so:
Y=1-X
So, we will have the <u>molar fraction of each isotope</u>:
: X-1
: X
And the <u>atomic mass</u>:
: 21.9944
: 22.9898
If we multiply the molar mass by the each atomic mass of each isotope we will have:

Now we can solve for "X" :






The molar fraction of
is <u>0.999749</u>. Now we can calculate the molar fraction of
, so:

Now, if we multiply the molar fraction by the mass we can find the <u>mass</u> of
, so:

The mass of
is 0.000399316 g
I hope it helps!