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An interesting answer...I would have thought that they all have 2 electrons in the outer shell in their ground state.
This shows 19 electrons, with 4s1 as a valence electron. This is potassium (K).
The total number of valence electrons in Boron's ground state is 2
2 valence electrons are in an aluminum atom in the ground state.
8 valence electrons (so do all of the other noble gases)
Mg always has 2 valence electrons
The Noble gas group all have 8 valence electrons.
less than 2 (1)
Carbon has four valence at ground state has group four element
5 valence electrons exist in bromine period, at ground state bromine has 3 valence electrons
This shows 19 electrons, with 4s1 as a valence electron. This is potassium (K).
The total number of valence electrons in Boron's ground state is 2
2 valence electrons are in an aluminum atom in the ground state.
An atom of fluorine has 9 electrons in total. Electrons are equal to protons when the atom isn't an ion, and the number of protons is also the atomic number of the element, so you just need to know the atomic number to find out the number of electrons or protons.
A fluorine atom in the ground state has 7 valence electrons.
Valency is the number of electrons in the outer shell the charge is how many electrons is needed to form an octet (full valence = 8 electrons) Eg. Sulfur valence = 6 charge = -2 (needs to gain 2 electrons to gain an octet)
8 valence electrons (so do all of the other noble gases)
Mg always has 2 valence electrons