its a chemistry question. how many electrons do you think there are in orbit of the elements rb and cs"; 2nd question same but br and i. i told the teacher the amount of electrons in those elements but she said it was wrong. wth?
2007-10-02 13:28:10 · 2 answers · asked by Updated Life th13f 2 in Science & Mathematics ➔ Chemistry
plz hilp!!!
2007-10-02 13:35:11 · update #1
kk just typing fast. i told her Rb=35, Cs=55, Br=35 and I=53.
2007-10-02 13:37:49 · update #2
Please, always capitalize the first letter of the element: Rb, Cs, Br and I.
What answers did you provide?
For example, Rubidium (Rb) electrons per shell are:
2, 8, 8, 18, 1, a total of 37 electrons.
2007-10-02 13:35:38 · answer #1 · answered by Hahaha 7 · 0⤊ 0⤋
You were right except for Rb...
*..Rb. Rubidium, No. of Electrons = 37 in 5 Energy Shells.
Shell K = 2, L = 8, M = 18, N = 8, O = 1.
*..Cs. Caesium, No. of Electrons = 55 in 6 Energy Shells.
K = 2, L = 8, M = 18, N = 18, O = 8, P = 1.
*..Br. Bromine, No. of Electrons = 35 in 4 Energy Shells.
K = 2, L = 8, M = 18, N = 7
*..I. Iodine, No. of Electrons = 53 in 5 Energy Shells.
K = 2, L, = 8, M = 18, N = 18, O = 7.
2007-10-02 13:45:22 · answer #2 · answered by Norrie 7 · 0⤊ 0⤋