Pawan Prajapati
Last Activity: 4 Years ago
Answer:
A chemical element is a substance that cannot be further broken down by any chemical reaction.
Each element has a unique number of protons in its atom. For example, a hydrogen atom has 1 proton, while a carbon atom has 6 protons.
Varying the number of electrons in an atom of an element produces ions. ...
There are 118 known elements.
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