Oh, dude, that's like asking me to remember my high school chemistry class! The element you're looking for is aluminum. It's got 2 electron shells and 3 valence electrons hanging out, doing their thing. So yeah, aluminum is your guy for that question.
Calcium has 2 valence electrons and 4 electron shells. It is represented by the chemical symbol Ca.
Silicon. Electronic configuration [Ne]3s23p2
Well, darling, the element you're looking for is carbon. It struts around with 2 electron shells and 4 sassy valence electrons, making it the life of the chemical party. So, if you're ever in need of a carbon copy, just remember this little fun fact.
Silicon. Electronic configuration [Ne]3s23p2
This element is sulfur; the electron configuration of sulfur is [Ne]3s23p4. Sulfur has three electron shells cotaining 2, 8 and 6 electrons. The last six are valence electrons.
Sulphur
Calcium has 2 valence electrons and 4 electron shells. It is represented by the chemical symbol Ca.
Silicon. Electronic configuration [Ne]3s23p2
Period number = no. of electron shells. Therefore neon has two shells.
Well, darling, the element you're looking for is carbon. It struts around with 2 electron shells and 4 sassy valence electrons, making it the life of the chemical party. So, if you're ever in need of a carbon copy, just remember this little fun fact.
Silicon. Electronic configuration [Ne]3s23p2
Helium has 2 electrons (total of 2 electrons and 2 valence electrons)
Helium has 2 electrons and Radon has 86 electrons but both have 8 valence electrons (8 electrons in their outermost shells)
This element is sulfur; the electron configuration of sulfur is [Ne]3s23p4. Sulfur has three electron shells cotaining 2, 8 and 6 electrons. The last six are valence electrons.
H, Li, Na, K = 1valence electrons Be, Mg, Ca = 2 valence electrons B, Al = 3 valence electrons C, Si = 4 valence electrons N, P = 5 valence electrons O, S = 6 valence electrons F, Cl = 7 valence electrons He, Ne. Ar = 0 because they are noble gases and all their electron shells are full
The element with 2 valence electrons and 4 protons is beryllium. Beryllium has an atomic number of 4, indicating it has 4 protons in its nucleus. The valence electrons are the outermost electrons in an atom, and beryllium has 2 valence electrons in its outer energy level.
To determine the number of valence electrons for an element on the periodic table, you look at the group number of the element. The group number tells you how many valence electrons the element has. For example, elements in group 1 have 1 valence electron, elements in group 2 have 2 valence electrons, and so on.