The image you provided is a comparison chart that clearly outlines the differences between an element and a compound. Since there is no specific question asked (like "Which of these is an element?"), I will summarize the key takeaways from the chart to help you understand the main differences for your homework.
Here is the breakdown of the information presented:
1. Composition (What they are made of)
*
Element: Made of only
one type of atom. You cannot break it down into anything simpler by chemical means.
*
Compound: Made of
different elements combined together in a fixed ratio. You *can* break it down into simpler substances (the elements it's made of).
2. Quantity
*
Element: There is a limited number. The chart states there are
118 known elements.
*
Compound: The list is
endless. Scientists can create new compounds all the time by combining elements in different ways.
3. Representation (How we write them)
*
Element: Represented by a
symbol (usually 1 or 2 letters, like Fe for Iron or O for Oxygen).
*
Compound: Represented by a
formula (which shows which elements are inside and how many atoms of each, like H₂O for water).
4. Examples
*
Elements: Copper, iron, hydrogen, oxygen, mercury.
*
Compounds: Water, salt, sugar, methane.
Final Answer:
The main difference is that an
element consists of only one type of atom and cannot be broken down further (represented by a symbol), while a
compound contains different elements combined in a fixed ratio and can be broken down into simpler substances (represented by a formula).
Parent Tip: Review the logic above to help your child master the concept of elements and compounds worksheet.
![Atoms, Elements and Compounds [Worksheet] by Good Science Worksheets](/images2/elements-and-compounds-worksheet/elements-and-compounds-worksheet-21.jpg)
