Here's why:
* Protons are positively charged particles found in the nucleus of an atom.
* Neutrons are neutral particles also found in the nucleus.
* Electrons are negatively charged particles that orbit the nucleus.
The number of protons determines the element an atom is. For example:
* All hydrogen atoms have 1 proton.
* All carbon atoms have 6 protons.
* All oxygen atoms have 8 protons.
Key Points:
* The atomic number is a whole number and is written as a subscript before the element's symbol (e.g., ¹²⁶C).
* The atomic number is unique to each element and is used to identify it on the periodic table.
* While the number of neutrons can vary (isotopes), the number of protons always remains the same for a specific element.
Let me know if you'd like more examples or have other questions about atomic numbers!
