- Some questions frequently asked by houseowners : the atomic mass of lithium on a four significant figure periodic table is 6.941 amu. lithium has two natural..?
♥ the atomic mass of lithium on a four significant figure periodic table is 6.941 amu. lithium has two natural isotopes with atomic masses of 6.10512 amu and 7.01600 amu. calculate the percent distribution between these two points. i don't understand how this can be done. i would appreciate it if someone could explain this. thanks =]how to use the periodic table..?
♥ anything about the groups, atomic number, proton, anything. how would you find out if a metal/non metal is more reactive than the other just by looking at the periodic table?the elements in period 3 (on periodic table) all have the same number of?
♥ a) valence electrons b) orbitals containing electrons c) sublevels containing electrons d) energy levels containing electronswhat are the trends across the periodic table ?
♥ i am trying to write a 1000 word essay on trends across the periodic table, and i need 2 web documents that are at least 1000 words long to research from. i have been looking but the sites that i have found are either to short or they are way to scientific for what this needs. or if anyone can explain to me more about the trends that would be also very helpful. bryony xalien periodic table?
♥ http://kozchem.home.comcast.net/~kozchem/docs/chem/unit4/periodicpuzzle.pdf can anyone help.