A positive nucleus around which negative electrons orbit., An atom with an excess of electrons is a negative ion., An atom with a lack of electrons is a positive ion., An electron is a particle with the least negative charge., In a closed system, the algebraic sum of the charges of all particles remains unchanged.,

Electrification

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?