tetrahedral
The electron valence shell has 1 electron.
Br is in the center with single bonds going out to each of the 3 surrounding oxygen. Br has 1 lone pair and each of the oxygens have three lone pairs.
1 electron in the s orbital
The electron has a charge of -1; but the electron has a mass.
an electron is about 1/1836 amu.
3 bondings + 1 electron pair = 4 (electron domains)
BrO3
Planar with an angle of 90 dergrees
PH3 has 3 bonding pairs and 1 non-bonding pair of electrons. Its electron pair geometry is Tetrahedral and its molecular geometry is Trigonal Pyramidal.
Anything with six electron groups, keep in mind an electron group is a bonded atom or an electron pair, is an octahedral. Anything in an octahedral and a lone pair is the square pyramidal geometry. So all angles between the atoms are a little less than 90 degrees and the angle of the electron pair is greater than 90.
Tribromine octoxide.
Remember, the geometry of a molecule has to do with how many electron pairs AND lone pairs there are around the CENTRAL atom. Basically, count up the lines and the pairs of dots. Notice that 'Xe' has 8 electrons in its valence shell, and 'F' has only 7. When we put 4 'F' atoms around 1 'Xe' atom, each Flourine atom is going to want to 'share' one of Xenon's electrons so that it can have 8 electrons. Also remember that when an atom shares electrons, it shares in pairs. Each shared bond has 2 electrons. Now count up the number of electron PAIRS around the CENTRAL atom. We have 4 bonds (one with each Fluorine atom), and 2 lone pairs of of electrons bringing our count up to 12 electrons around Xenon, or 6 pairs total. (This violates the 'Octet Rule', but it's ok in this situation) Here is a list of geometries according to the number of Electron Domains: 2 'ED's (electron domains) = Linear shape 3 'ED's = Trigonal Planar 4 'ED's = Tetrahedral 5 'ED's = Trigonal Bi-pyramid 6 'ED's = Octahedral The electron-domain geometry of XeF4 would be Octahedral. Hope this helped!
Bromate is a polyatomic ion made of Bromine and oxygen: BrO3-
BrO3 is an anion of minus one (-1) charge. BrO3^-1 Using oxygen as the standard at '-2' Then the oxygen moiety is 3 X -2 = -6 So doing a 'little' sum -6 + Br = -1 Add '6' to both sides Br = 5 (The oxidation number of Br). NB Using '-2' for oxygen is a good standard for most molecules/ions. However, oxygen's oxidation number does vary , but not in very many molecules/ions.
If Br had an oxidation number of +7, the net charge on the ion would be +1, and not -1. Thus, the oxidation number for Br in BrO3- should be 5+.
YEAH! Algebra 1 comes before geometry.
it goes algebra 1, geometry, then algebra 2