Protons: positive, mass is 1 amu (positive), found inside nucleus (positive), determines the element's identity, ALWAYS equal to the atomic number, Neutrons: no charge, mass is 1 amu (neutral), also found inside nucleus (neutral), Electrons: negative, basically has no mass, found outside nucleus ,

Табло

Визуален стил

Опции

Шаблон за превключване

Възстановяване на авто-записаната: ?