SOLUTIONS TO EXERCISES, LESSON 2
1.
A simple substance that cannot be broken down by chemical means para 2-2b)
2.
positive (para 2-3)
3.
negatively (para 2-3)
4.
Bonding atoms combine with each other to form molecules. (para 2-5b)
5.
x-ray photons (para 2-6)
6.
air, an x-ray film, or living tissue (para 2-6)
7.
The atom will be destroyed and the photon will release or expend its energy.
(para 2-6a(1)
8.
photo-electron (para 2-6a(2))
9.
18 to 45 days of gestation (para 2-7b(3))
10.
c
(para 2-2d)
11.
g
(para 2-2c)
12.
e
(para 2-2e)
13.
a
(para 2-3)
14.
b
(para 2-4, Table 2-1)
15.
f
(para 2-7a)
16.
d
(para 2-6b(2)(b))
End of Lesson 2
MD0512
2-11