Multiple Choice
Which of the following is a main-group (representative) element in period 3 of the periodic table?
4. Atoms and Elements
Periodic Table: Representative Elements & Transition Metals
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In Period 2 of the periodic table (Li, Be, B, C, N, O, F, Ne), which element has the smallest atomic mass?
A
Oxygen (O)
B
Lithium (Li)
C
Boron (B)
D
Neon (Ne)
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