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Question
Elements in the modern periodic table are arranged in ______groups and______ periods.
Options
7, 18
18, 7
17, 8
8, 17
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Solution
Elements in the modern periodic table are arranged in 18 groups and 7 periods.
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RELATED QUESTIONS
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| a 3 |
b 4 |
c 5 |
d 6 |
e 7 |
f 8 |
g 9 |
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|
| i 11 |
j 12 |
k 13 |
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m 15 |
n 16 |
o 17 |
p 18 |
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| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
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