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level: Level 1 of Electronic structure

Questions and Answers List

level questions: Level 1 of Electronic structure

QuestionAnswer
The first 2 columns in a periodic table are known as the ...... s block
The transition metal columns are known as the ...... d block
The columns /groups 3-8 are known as the... p block
The definition of an Atomic orbital isShells are made up of atomic orbitals. An atomic orbital is the region around the nucleus that can hold up two electrons with opposite spins.
S orbitals= sphere each shell contains 1s orbital 1st shell contains only s ( 1s1 1s2)
P orbitalsshape = dumb bell each shell from the 2nd contains 3p orbitals with 2 electrons in each so in tot 6 e ( 1s22s22p6)
Shell 3consist of p and s orbitals with a higher energy level
D orbitals- 5 d orbitals so 10 electrons
Working out amount of electrons by sub shells presents=2 p=6 d=10 f=14
When it gets to the 4th shell they is... backfilling by the 3d block due to 3d having higher energy than 4s subshell
Electron pairing occurs whentwo electrons are in opposite spin as they are both negatively charged to counteract repulsion
Short hand configurationThe last electron from group 8 goes in square brackets [ne]1s2
orbital =2 electrons
n=4 shellthey are 4 sub shells s,p,f,d so 2+6+10+14 =32