Periodic Table and Elements (Grade 8)
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Periodic Table and Elements
Instructions: Use a periodic table to answer the questions.
1.
Mercury is a metalloid.
- True
- False
2.
Nitrogen has a higher ionization energy than potassium.
- True
- False
3.
The average atomic mass of calcium is 20 amu.
- True
- False
4.
Magnesium has fewer protons than neon.
- True
- False
5.
Tin has a larger atomic size than iodine.
- True
- False
6.
Uranium-238 contains 146 neutrons.
- True
- False
7.
Radon is a noble gas.
- True
- False
8.
Mendelevium is a lanthanide.
- True
- False
9.
Titanium has a greater average atomic mass than phosphorus.
- True
- False
10.
Polonium and astatine are both halogens.
- True
- False
11.
The atomic symbol for rutherfordium is Ru.
- True
- False
12.
Lithium is an alkaline-earth metal.
- True
- False
13.
Cobalt has 27 protons.
- True
- False
14.
The symbol for tin is Sb.
- True
- False
15.
Gold's atomic number is 79.
- True
- False
16.
The Periodic Table has 7 groups.
- True
- False
17.
Neon has a larger atomic size than xenon.
- True
- False
18.
Sodium is located in Period 3 of the Periodic Table.
- True
- False
19.
Most of the elements on the Periodic Table are metals.
- True
- False
20.
Chlorine is located in Group 3 of the Periodic Table.
- True
- False
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