The outermost principal shell -or regions around the nucleus where electrons move- contains the valence electrons. The number of valance electrons can be calculated for the columns with A's above them. The number given to the column represents the number of valence electrons (written before and next to the A). For instance, Lithium (Li) and Sodium (Na) have one valence electron because they are in column one. During chemical bonding, these two elements and others in their column have the same configuration of outer electrons; thus, they tend to lose their single electron in order to gain a full outer shell. Similarly, oxygen (O) and sulfur (S) have 6 valence electrons, so they tend to gain electrons to make their full outer shell.
well they go like this (by the way this is grade 9 science so yeahmight be different for others) OKAY it is: 2,8,8,18,18,32,32 hope that helps =)
You can tell how many electrons are in the outer shell of an atom by looking at what group it is in as the group number is the same as the number of electrons in the outer shell.
The outer shell (N=4) of the copper element has 2 electrons.
There are different electrons in the outer shell of each element.
Depends on what element you are talking about.
Two electrons in the outer shell of radium.
Eight, except for helium which has two.
Boron has 3 electrons in the outer shell and 2 electrons in the inner.
There are different electrons in the outer shell of each element.
The outer shell (N=4) of the copper element has 2 electrons.
The outer shell (N=4) of the copper element has 2 electrons.
There are different electrons in the outer shell of each element.
Depends on what element this atom is.
Depends on what element you are talking about.
As is a p block element in period 4 and group 5A, so it has 5 valence (outer) electrons (4s2 4p3).
Chlorine is a chemical element with the symbol Cl and an atomic number of 17. It has 7 electrons in its outer shell.
Silicon (or Silicium) has 4 electrons in its outer shell, just like Carbon, Germanium, Tin and Lead.
All noble gasses have 8 valence electrons which means outer electrons. As for electrons overall, argon would have 18.
Seven, as does any other halogen element.