Activity 17: HOW ABOUT MY
SIZE?
Direction: Using only a periodic table predict the order of increasing atomic radius for each of the
following sets of elements:
1. Ca, Mg, Be
2. Ga, Br, Ge
3. AI, TI, Si
4. Zn,
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Activity 17: HOW ABOUT MY
SIZE?
Direction: Using only a periodic table predict the order of increasing atomic radius for each of the
following sets of elements:
1. Ca, Mg, Be
2. Ga, Br, Ge
3. AI, TI, Si
4. Zn,
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Answer:
1. Be (Beryllium), Mg (Magnesium), Ca (Calcium)
2. Ga (Gallium), Ge (Germanium), Br (Bromine)
3. Al (Aluminum), Si (Silicon, Tl (Thallium)
4 Zn (Zinc)