Multiple Choice
If necessary, use the periodic table to answer the following question. Click here to open the periodic table in a new tab
How many elements are in period 3 of the periodic table?
A) 3
B) 8
C) 4
D) 10
Correct Answer:

Verified
Correct Answer:
Verified
Q1: Which of the following is the oxidation
Q3: What is 6,987,000 in scientific notation?<br>A)6)987 x
Q4: Which of the following is not a
Q5: What type of reaction is shown below:<br>2C<sub>5</sub>H<sub>5</sub> + Fe → Fe(C<sub>5</sub>H<sub>5</sub>)<sub>2</sub><br>A)Synthesis<br>B)Decomposition<br>C)Double displacement<br>D)Single displacement
Q6: F-21 has a half-life of 5 seconds.
Q7: Which of the following is the atomic
Q8: What does the atomic mass of an
Q9: Which subatomic particle has a positive charge?<br>A)Electrons<br>B)Protons<br>C)Photons<br>D)Neutrons
Q10: Which metric prefix is represented numerically by
Q11: Cesium-137 has a half-life of 30 years.