Lecture 3 Flashcards
1
Q
How many electrons are in each shell?
A
2,8,8
2
Q
What is the order of orbitals
A
1s,2s,2p,3s,3p,4s,3d,4p,5s,4d,5p,6s,4f,5d,6p,7s
3
Q
What energy does the most stable electronic configuration of an atom have?
A
The most stable electronic configuration of an atom is the one that has the lowest amount of energy.
4
Q
Why do s orbitals show less energy?
A
Because it is less effectively shielded.
5
Q
What does the 1 in 1s stand for
A
The orbital occupied by the hydrogen electron is called 1s orbital. The 1 represents the fact that the orbital is in the energy level closest to the nucleus. The S tells you the shape.
6
Q
Write down the electronic configurations of F”e” ^(2+)
A
1s2,2s2,2p6,3s2,3p6,3d6
7
Q
What’s the orbital configuration of sulphur?
A
1s2 2s2 2p6 3s2 3p4
