Download Ch 7 Atomic Structure

Ch 7 Atomic Structure and Periodicity
Worksheet 2
1. The lowest energy state of an electron in an atom is called its ***
2. The first person to quantize the atom in order to explain ABLES?
3. In order for an electron to move from ground state to and excited state it must (absorb, lose)
energy.
4. A region of space around a nucleus in which an electron may be found 90% of the time is called an
****.
5. The second quantum number designates orbital **** and is symbolized as ****.
6. Which of the following orbital designations cannot exist according to Schrödinger? wave equation?
1p 2s 3p
6s 4g
5f
7d.
7. Which of the following are possible sets of quantum of numbers for an electron in an atom? For the
sets that are not possible tell what is wrong with them.
a. n = 1, l = 0, m l = 1, ms = +1/2
b. n = 9, l = 7, m l = -6, ms = -1/2
c. n = 2, l = 1, m l = 0, ms = 0
d. n = 3, l = 2, ml l = -3, ms = +1/2
8. How many electrons in an atom could have the following sets of quantum numbers?
a. n = 3
b. n = 2, l = 0
c. n = 2, l = 2, ml = 1
d. n = 2, l = 0, m l = 0
e. l = 3, m l = 3, ms = -1/2
9. Give possible values for the quantum numbers of the valence electrons of an atom of 22Ti.
10. Give the orbital diagram of the following elements:
Complete Form: 19K; 33As Noble Gas Form: 29Cu; 77Ir
11. Give the electron configuration of the following elements:
1Complete Form: 24Cr; 13Al3+: 29Cu1+ Noble Gas Form:
65Tb; 52Te; 35Br
12. Complete the following sentences:
a. Ionization energy (increases, decreases) as atomic radius increases.
b. Ionization energy (increase, decreases) as electron affinity increases.
13. Two elements X and Y are in the same period. X has ionization energy of 400kJ/mol; Y has 200
kJ/mol. Is X to the left or right of Y in the periodic table?
14. Which of the following groups of elements is arranged correctly in order of increasing energy:
a. C<Si<Li<Ne
b. Ne<Si<C<Li
c. Li<Si<C<Ne
d. Ne<C<Si<Li
15. Which of the following has the largest radius: P 3-, Cl-, Cl, Al3+.
16. Arrange the following in terms of increasing electron affinity: K, Rb, C, F, Li.