The diagram shows the way the atoms bond together in a molecule of water - Junior Cycle Science - Question a - 2011
Question a
The diagram shows the way the atoms bond together in a molecule of water.
(i) What is a molecule?
(ii) Each hydrogen atom shares two electrons with the oxygen atom... show full transcript
Worked Solution & Example Answer:The diagram shows the way the atoms bond together in a molecule of water - Junior Cycle Science - Question a - 2011
Step 1
What is a molecule?
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Answer
A molecule is defined as two or more atoms combined chemically to form a substance. It represents the smallest particle that can exist independently. For example, a single atom can be considered a molecule if it is an inert gas.
Step 2
What name is given to the type of bonding that involves the sharing of pairs of electrons?
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Answer
The type of bonding that involves the sharing of pairs of electrons is known as covalent bonding.
Step 3
In the space below, draw a diagram of a methane molecule, CH₄, showing the bonding between its atoms.
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Answer
The diagram of a methane molecule (CH₄) includes a central carbon atom bonded to four hydrogen atoms. Each bond is represented as a dash, indicating the sharing of electrons.
H
|
H—C—H
|
H
Step 4
Describe a second type of chemical bonding and name a compound which has this type of bonding.
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Answer
A second type of chemical bonding is ionic bonding. In ionic bonding, positive and negative ions attract each other due to electrostatic forces. This occurs typically through the transfer of electrons, resulting in the formation of charged ions.
An example of an ionic compound is sodium chloride (NaCl).
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