The 88 different kinds of atoms, or elements, that occur naturally on earth are basically the same size, but they vary in weight because each has a progressively larger number of these three basic particles.
पृथ्वीवरील नैसर्गिक वस्तूंत जवळजवळ ८८ प्रकारचे अणू किंवा मूलद्रव्ये आढळतात.