the only stable isotope of fluorine, 199f; it has nine protons and ten neutrons

listen to the pronunciation of the only stable isotope of fluorine, 199f; it has nine protons and ten neutrons
الإنجليزية - الإنجليزية
fluorine-19
the only stable isotope of fluorine, 199f; it has nine protons and ten neutrons

    الواصلة

    the on·ly sta·ble i·so·tope of fluorine, 199f; it has Nine protons and ten neutrons

    النطق

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