For electron configuration, Groups 1-2 end in S, groups 3-8 end in P, transition metals end in D for the most part, and the actinide series (transition metals under the main table) end in F for the most part. The Element Francium - Known Isotopes. Fr^o[Rn]7s^1 + 1st Ionization Energy => Fr[Rn]^+ + 1e^- Since the 7s^1 electron is no longer present in Fr[Rn]^+ and n = 7 is the highest principle quantum number then there are no electrons in the valence level. Answer Save. Here are just a few examples of francium’s decay paths: Francium-223 is the element’s longest lived isotope. Login to reply the answers Post; Still have questions? juzx. zero Fr^+ is the ionized form of the element. An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. Most of the isotope data on this site has been obtained from the National Nuclear Data Center.Please visit their site for more information.. Get your answers by asking now. Germanium is #32. Relevance. It has a half-life of 22 minutes. For charge/valence e-: 1 dude lol it is an Alkali Metal... lol. Francium, number 87, was the last of these elements to be discovered in nature. 0 1 0. Favorite Answer. The chemical symbol for Francium is Fr . How many valence electrons does Francium have? From its position in the table, it was clear that element 87 would be a reactive alkali metal, the heaviest member of the family lithium, sodium, potassium, rubidium and caesium. While these are the most common valences, the real behavior of electrons is less simple. 7 years ago. The definition of the valence level is 'the highest principle quantum number of the electronic configuration'.

Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Known Isotopes Ask Question + 100. Origin of Name: After the country France: Date and Place of Discovery: In 1839 at the Curie Institute in Paris, France : Discovered by: Marguerite Catherine Perey

Electronegativity, symbol χ, is a concept that describes the tendency of an atom to attract a shared pair of electrons (or electron density) towards itself.

Join Yahoo Answers and get 100 points today. ... Half the distance between the centers of 2 of the same atoms OR the distance between the nucleus and valence electrons is known as the atomic _____ ionic. Ge is group 4, under Carbon; that gives it 4 valence electrons automatically.

Counting down from hydrogen, which is in the n=1 shell, francium's outermost electrons are "contained" within the n=7 shell and the element resides in the "s-block."