level: Level 1 of Electronic structure
Questions and Answers List
level questions: Level 1 of Electronic structure
| Question | Answer |
|---|---|
| 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 is | Shells 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 orbital | s= sphere each shell contains 1s orbital 1st shell contains only s ( 1s1 1s2) |
| P orbitals | shape = dumb bell each shell from the 2nd contains 3p orbitals with 2 electrons in each so in tot 6 e ( 1s22s22p6) |
| Shell 3 | consist 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 present | s=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 when | two electrons are in opposite spin as they are both negatively charged to counteract repulsion |
| Short hand configuration | The last electron from group 8 goes in square brackets [ne]1s2 |
| orbital = | 2 electrons |
| n=4 shell | they are 4 sub shells s,p,f,d so 2+6+10+14 =32 |