<span>A capital letter or a combination of a capital letter and a small letter that is used to represent an element is called Chemical symbol.
</span>All chemical elements have their chemical symbols consisting of one or two Latin letters. A chemical symbol is a chemical element mark. For the symbol of a chemical element it takes the first letter of its name in Latin, and if several elements have a name that begins with the same letter, in most of the symbols there is another characteristic letter from the name. The symbols are written in a large Latin letter, and if there is another letter, it is written a small.
- The charge distribution in a CH₄ molecule is symmetric.
- CH₄ molecules are nonpolar.
<h3>Explanation</h3>
A CH₄ molecule has four C-H bonds. Each of the C-H bonds is weakly polar. However, the molecule has a tetrahedral shape. The shape itself is symmetric.
As a result, charges on the four C-H bonds have a symmetric distribution. They cancel out within the molecule. Overall, the molecule is nonpolar.
<span>They keep the same form no matter what tense is used.
</span>
A. The hydrogen molecule has a structural formal that looks like this: H—H. The oxygen molecule has a structural formula that looks like this: O=O (except you should make the lines longer). When you combine the molecules, it has a structural formula that looks like this:
O
/ \
H H
b. O=C=O (again, make the lines a little longer)
c. space-filling model of hydrogen looks like this oo (circles should be touching) and the space-filling model of carbon dioxide should look like this OoO (circles should be touching)
Answer:
For one atom of lithium -6 I will need_16.85____ atom of lithium -7 for an average atomic mass of 6.944 .
Explanation:
1 ) Let required atom be m .

6 + 7m = 6.944 + 6.944m
7 m - 6.944 m = .944
.056 m = .944
m = 16.85