valence electrons
outer most electrons
It indicates how many electrons are required to complete a full valence shell.
An element's most likely oxidation state is often related to its valence electrons because elements tend to gain or lose electrons to achieve a stable electron configuration. The number of valence electrons an element has can determine how many electrons it will gain or lose to reach a full or empty outer shell, resulting in a specific oxidation state.
Electrons are mostdirectlyrelated to electric current. (Electric current is caused by the movement of electrons between atoms.)
An isotope is not really related to the number of electrons, but rather it is determined by the number of neutrons.
It indicates how many electrons are required to complete a full valence shell.
because the electrons plus the nuetrons equal the mass
You think probable to the role of electrons.
The nucleus has most of the mass (weight) of an atom. The size of the atom, however, is related to its electron cloud (i.e. to the electrons that orbit around the nucleus)
An element's most likely oxidation state is directly related to its valence electrons, which are the electrons in the outermost shell. Elements tend to lose, gain, or share electrons to achieve a stable electron configuration, often resembling that of the nearest noble gas. For example, alkali metals, which have one valence electron, typically exhibit a +1 oxidation state, while halogens, with seven valence electrons, usually have a -1 oxidation state. Thus, the number of valence electrons influences the charge an element is likely to adopt in chemical reactions.
An element's most likely oxidation state is often related to its number of valence electrons. The oxidation state is typically the charge an atom assumes when it forms ions, and it tends to be the same as the number of valence electrons the atom gains or loses to achieve a stable electron configuration.
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