Question
List the names, symbols, and atomic numbers of the top four elements in Groups $3,5,$ and 8.
Step 1
The first four elements in Group 3 are Scandium, Yitrium, Lanthanum, and Actinium. Their symbols are $S c$, $Y$, $L a$, and $A c$ respectively. Their atomic numbers are 21, 39, 57, and 89 respectively. Show more…
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