Quantum Numbers (n, l, ml, ms)
What is the principal quantum number for a 3d orbital?
n = 3
What is the shape of an s orbital?
Spherical
How many radial nodes does a 1s orbital have?
0
Which is higher in energy: a 2p orbital or a 1s orbital?
2p orbital
In which orbital is the electron density highest near the nucleus: 1s or 2s?
1s
How many different values of ml can exist for a p orbital?
3 (ml = -1, 0, +1)
How many lobes does a p orbital have?
2
How many angular nodes does a p orbital have?
1
What happens to the energy of an electron as it moves further from the nucleus?
The energy increases.
What is the probability of finding an electron at the nucleus in a p orbital?
Zero
What is the angular momentum quantum number (l) for a d orbital?
l = 2
Which orbital has four lobes and is shaped like a clover?
d orbital
How many radial nodes does a 2s orbital have?
1
What is the relationship between n and energy in a hydrogen atom?
Energy increases as n increases.
What does the radial probability density tell you?
It tells the likelihood of finding an electron at a particular distance from the nucleus.
What are the possible values of ms for an electron?
+½, -½
Which orbital has the most complex shape among s, p, d, and f?
f orbital
How many angular nodes does a d orbital have?
2
Which orbital has a higher energy: 3d or 4s?
3d
Where is the electron most likely to be found in the 1s orbital?
Near the Nucleus
How many unique quantum numbers are needed to describe an electron in an atom?
4 (n, l, ml, ms)
What is the name of your peer coach?
Cindy
How do you calculate the total number of nodes in an orbital?
Total nodes = n - 1 (Radial nodes = n - l - 1; Angular nodes = l)
Why is the 2s orbital lower in energy than the 2p orbital despite both having n = 2?
Due to greater penetration of the 2s orbital towards the nucleus, leading to stronger attraction and lower energy.
In the 2s orbital, what is the significance of the radial node?
At the radial node, the probability of finding the electron is zero.