Everyday Science
Medium
Question
The horizontal rows of the periodic table are called ______?
A
Groups
B
Periods
✓ Official correct answer
C
Sets
D
Matrices
Community credibility
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A
Groups
No member explanations yet for this option.
B
Periods
No member explanations yet for this option.
C
Sets
No member explanations yet for this option.
D
Matrices
No member explanations yet for this option.
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