<span>Cesium-134 is an isotope. An isotope is two or more elements that have the same number of protons, but different number of neutrons. A Neutron is a subatomic particle that has about to same mass as a proton, but its not electrically charged. One atom of CS-134 has 78 neutrons.</span>
The oxidation number of P in Mg3P2 is 3. When writing ionic compounds, you swap the oxidation numbers and add them as the subscript.
Explanation:
Many transition metals cannot lose enough electrons to attain a noble-gas electron configuration. In addition, the majority of transition metals are capable of adopting ions with different charges.
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