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What type of bond is formed when one pair of electrons is shared between two atoms? Draw a dot and cross diagram to show this type of bonding in a methane (CH₄) molecule - Leaving Cert Chemistry - Question c - 2016
Question c
What type of bond is formed when one pair of electrons is shared between two atoms? Draw a dot and cross diagram to show this type of bonding in a methane (CH₄) mol... show full transcript
Worked Solution & Example Answer:What type of bond is formed when one pair of electrons is shared between two atoms? Draw a dot and cross diagram to show this type of bonding in a methane (CH₄) molecule - Leaving Cert Chemistry - Question c - 2016
Step 1
Step 2
Draw a dot and cross diagram to show this type of bonding in a methane (CH₄) molecule.
Answer
To illustrate the bonding in a methane molecule (CH₄), the dot and cross diagram would show the following:
The diagram includes:
- A carbon atom in the center with 4 valence electrons.
- Four hydrogen atoms surrounding the carbon, each sharing one electron with the carbon, forming four bond pairs.
This is visualized as:
H H
| |
H-C-H
|\n H
In the dots and crosses, the shared pair of electrons are represented distinctly.
Step 3
Step 4
Would you expect methane to be water soluble? Explain your answer.
Answer
No, methane is not expected to be water soluble. This is because methane is a non-polar molecule, and like dissolves like; hence, it is not attracted to polar water molecules. Additionally, there is a low electronegativity difference between carbon and hydrogen, which reinforces its non-polar characteristics.