As radicals are a fundamental part of Chinese characters, I learned the following 100 radicals. The 100 radical (variants) are followed by a column with the stroke count and the meaning.
1 一 1 one
2 丨 1 line
3 丶 1 dot
4 丿 1 slash
5 乙 1 second
6 亅 1 hook
7 二 2 two
8 亠 2 lid
9 人 2 man
10 儿 2 son, legs
11 入 2 enter
12 八 2 eight
13 冂 2 (down box)
14 冖 2 cover
15 冫 2 ice
16 几 2 table
17 凵 2 (open box)
18 刀 2 knife
19 力 2 power
20 勹 2 wrap
21 匕 2 spoon
22 匚 2 (right open box)
23 匸 2 hiding enclosure
24 十 2 ten
25 卜 2 divination
26 卩 2 seal (device)
27 厂 2 cliff
28 厶 2 private
29 又 2 again
30 口 3 mouth
31 囗 3 enclosure
32 土 3 earth
33 士 3 scholar
34 夂 3 go
35 夊 3 go slowly
36 夕 3 evening
37 大 3 big
38 女 3 woman
39 子 3 child
40 宀 3 roof 41 寸 3 inch
42 小 3 small
43 尢 3 lame
44 尸3 corpse
45 屮 3 sprout
46 山 3 mountain
47 巛 3 river
48 工 3 work
49 己 3 oneself
50 巾 3 turban
51 干 3 dry
52 幺 3 short thread
53 广 3 (dotted cliff)
54 廴 3 long stride
55 廾 3 (two hands)
56 弋 3 shoot
57 弓 3 bow
58 彐 3 snout
59 彡3 bristle
60 彳3 step
61 心 4 heart
62 戈 4 halberd
63 户 4 door
64 手 4 hand
65 支4 branch
66 攴 4 rap, tap
67 文 4 script
68 斗 4 dipper
69 斤 4 axe
70 方 4 square
71 无 4 not
72 日 4 sun
73 曰 4 say
74 月 4 moon
75 木 4 tree
76 欠 4 lack
77 止 4 stop
78 歹 4 death
79 殳 4 weapon
80 毋 4 do not
81 比 4 compare
82 毛 4 fur
83 氏 4 clan
84 气 4 steam 85 水 4 water 86 火 4 fire
87 爪 4 claw
88 父 4 father
89 片 4 slice
90 牙 4 fang
91 牛 4 cow
92 犬 4 dog
93 玉 5 jade
94 瓜 5 melon
95 生 5 life
96 田 5 field
97 疒 5 sickness
98 白 5 white
99 目 5 eye
100 禾 5 grain