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Elements in the same group have the same number of valence electrons. These are the outer-shell electrons that react with other elements.
Valence electrons are the electrons in the outermost shell of an atom. The ones in the inner shell are known as core electrons.
the electrons in the outermost shell of an atom are considered to be the valence electrons.
The valence electrons are involved in chemical bonding.
The outer or valence shell
the valence shell is the outermost shell of an atom that has free electrons for taking part in chemical reactions... the valence shell of sodium has one free electron
Sodium is in the third group in the periodic table. It meens that sodium has three shell. First shell - 2 electrons, second shell - 8 electrons, third shell (outer energy level) - 1 electron.
yes indeed :)
Valence electrons can determine the reactivity of the atom. An atom with a full shell of valence electrons, like neon, will be less reactive than an atom with only one electron in its valence shell, like sodium.
Elements in the same group have the same number of valence electrons. These are the outer-shell electrons that react with other elements.
Before : One electron in the valence shell After reaction w/ Cl gas: none electron in the valence shell
Valence electrons are the electrons in the outermost shell of an atom. The ones in the inner shell are known as core electrons.
For group 1 elements : lithium , sodium, potassium...etc All of them have one valence electrons , however Rubidium(Rb) have two valence electrons. Therefore, Cesium have one valence electrons. :D
Sodium would need to gain 7 electrons to fill its valance shell. Instead of doing that, however, sodium will lose the one valence electron it does have, leaving behind the shell below it, which is already full.
Aluminum
The valence shell is the outer most shell or imaginary orbit of an atom containing <8 electrons. The electrons in this shell are called 'valence electrons'.
The valence shell is the outer most shell or imaginary orbit of an atom containing <8 electrons. The electrons in this shell are called 'valence electrons'.