Question

1. choose the best answer. which sublevels are found in the 4th energy level of an atom? s, p, and d s and p s only s, p, d, and f 10) type in the correct answers. what is the maximum number of electrons each level can hold? a. sublevel 1: b. sublevel 2: c. sublevel 3: d. sublevel 4:

Explanation:

• For question 9: The formula for the number of sub - levels in an energy level \(n\) is that the sub - levels are \(l = 0,1,\cdots,n - 1\). When \(n = 4\), \(l=0\) (s - sub - level), \(l = 1\) (p - sub - level), \(l=2\) (d - sub - level), \(l = 3\) (f - sub - level).
• For question 10: The formula for the maximum number of electrons in a sub - level with angular quantum number \(l\) is \(2(2l + 1)\).
• For \(l = 0\) (sub - level 1): \(2(2\times0 + 1)=2\)
• For \(l = 1\) (sub - level 2): \(2(2\times1+ 1)=6\)
• For \(l = 2\) (sub - level 3): \(2(2\times2 + 1)=10\)
• For \(l = 3\) (sub - level 4): \(2(2\times3+ 1)=14\)

Answer:

1. \(s,p,d,\text{and }f\)

10)
a. \(2\)
b. \(6\)
c. \(10\)
d. \(14\)