Which of the following elements has the same number of valence electrons as the element sulfur, S, atomic #16? Phosphorus, P, atomic #15 Chlorine, Cl, atomic #17
The number of electrons in an atom's outermost valence shell governs its bonding behaviour. Sodium has 1 valence electron from the 3s orbital, Phosphorus #1s^2 2s^2 2p^6 3s^2 3p^3# It has an #s^2p^5# electron configuration, so it requires only one additional valence electron to form a closed shell.
chlorine is more reactive than bromine. this is because of its high electron affinity. Non metals react by gaining electrons, so their reactivity depends on electron affinity.electron affinity is the amount of energy released when an electron is added to an isolated gaseous atom of an element.
The only thing I can think of to explain the numbers of valence electrons for expanded octets (up to 10 for phosphorus, up to 12 for sulfur, and up to 14 for chlorine) would be that these elements can have up to twice as many as the number of valence electrons (or protons) in a neutral state--is this the reason? If so, why/what’s the logic ...
For CCl 4 in the dot and cross diagram the four crosses represent carbon's outer shell valence electrons and the four sets of seven dots represent the original chlorine outer shell valence electrons. If one or more of the atoms are not identical, then there will be small deviations from the perfect Q-X-Q bond angle of 109.5 o .
VALENCE ELECTRONS Name The valence electrons are the electrons In the outermost prlnclpal energy level. They are always or -s and p- electrons. Slnce the total number of electrons possible In s and p sublevels Is elght, there can be no more than eight valence electrons. Determine the number of valence electrons In the atoms below. 1. Fluorine 2.
Aug 14, 2020 · As we go down the elements in a group, the number of electrons in the valence shell remains constant, but the principal quantum number increases by one each time. An understanding of the electronic structure of the elements allows us to examine some of the properties that govern their chemical behavior.