英语变得越来越难了 » English is becoming more difficult 原子呈电中性 » Atom is electrically neutral 吸取2ml甲醇 » Learn from 2ml methanol ..
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In any atom, the number of protons is equal to the number of electrons, and hence it is electrically neutral.
任何原子的质子数量与电子数量相等，因此是电中性的。
An atom containing an equal number of protons and electrons is electrically neutral, otherwise it has a positive or negative charge and is an ion.
原子含有相同数目的质子，电子电气中立的，否则它有一个积极或消极的收费，是一种离子。
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