A nobal gas
If there is an extra electron in the valence level then the electron is in the excited state and is carrying more energy. If the atom is normal then it is in the ground stte and contains low energy.
The Noble gas group all have 8 valence electrons.
No. Germanium in the ground state has 32 electrons, 4 of these are valence electrons which can participate in chemical reactions. Perhaps that is where you are getting confused.
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)
2nd energy level, the electron arrangement is 2,1 at ground state
5 valence electrons exist in bromine period, at ground state bromine has 3 valence electrons
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.
A fluorine atom in the ground state has 7 valence electrons.
8 valence electrons (so do all of the other noble gases)
Mg always has 2 valence electrons
Calcium atoms have 8 electrons in the second energy level. However, they are not the valence electrons. The outermost electrons in a calcium atom in the ground state are 2 4s electrons. So calcium atoms in the ground state have 2 valence electrons in the fourth energy level.
Carbon has four valence at ground state has group four element
If there is an extra electron in the valence level then the electron is in the excited state and is carrying more energy. If the atom is normal then it is in the ground stte and contains low energy.
Chlorine has seven (7) valence electrons and seventeen (17) electrons total in its ground state (not an ion or isotope).
244 An interesting answer...I would have thought that they all have 2 electrons in the outer shell in their 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.