- 1s22s22p4.
- 1s22s22p33s1.
- 1s22s22p23s2.
- 1s22s22p6.

Category: Chemistry
- 1s22s22p43s2.
- 1s22s22p6.
- 1s22s22p53s1.
- 1s22s12p7.
- Two paired in one, one in another.
- All three paired in one.
- One in each p orbital with parallel spins.
- Two in one, one empty.
- 1s22s22p3.
- 1s22s32p2.
- 1s22p5.
- 1s22s23s3.
- 4s has lower energy due to penetration and shielding effects.
- 3d has more orbitals.
- 4s is smaller.
- 3d is always empty.
- It increases the energy of inner orbitals.
- It decreases the effective nuclear charge felt by outer electrons, increasing their energy.
- It has no effect on energy.
- It makes all orbitals degenerate.
- The attraction between the nucleus and outer electrons.
- The repulsion between inner and outer electrons.
- The ability of electrons to hide from the nucleus.
- The effect of the nucleus on electron spin.
- 2s.
- 2p.
- They have the same energy.
- Depends on spin.
- n=1, l=0.
- n=0, l=1.
- n=1, l=1.
- n=2, l=0.
- A region of maximum electron density.
- A point where the probability of finding an electron is zero.
- An area where electrons are always found.
- The nucleus of the atom.
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