* Equal and Opposite Charges: A neutral atom has an equal number of protons (positive charge) and electrons (negative charge). These charges perfectly cancel each other out.
* Strong Forces: The protons are located in the nucleus, held together by the strong nuclear force. The electrons orbit the nucleus, attracted to the protons by the electromagnetic force. These forces keep the atom stable.
Think of it like this: Imagine you have a bag with an equal number of red and blue marbles. The red marbles represent protons (positive) and the blue marbles represent electrons (negative). Because you have the same number of each color, the bag is neutral (no overall color).
When an atom gains or loses electrons, it becomes an ion. This is when the balance of positive and negative charges is disrupted, resulting in a net charge (positive or negative).
