1. Who developed the Law of Octaves?
A. Dmitri Mendeleev
C. Johann Dobereiner
B. Glenn Seaborg
D. John Newlands
2. Who discovered the transuranium elements and re-design the periodic table to its present format?
A. Dmitri Mendeleev
C. Johann Dobereiner
B. Glenn Seaborg
D. John Newlands
3. Which of the following is NOT true about the arrangement of elements in the periodic table of elements?
A. The nonmetals are found on the left side of the periodic table.
B. The elements are arranged according to the increasing atomic number.
C. The metalloids are found along the side of the zigzag line between the metals and nonmetals.
D. All metallic elements are found in the middle of the periodic table and are solid at room temperature except for mercury.
4. Which period has 18 elements?
A. 2
B. 3
C. 4
D. 6
5. Which of the following elements react by losing one electron?
A. alkaline earth metals
C. halogens
B. alkali metals
D. noble gases
6. Which states that the chemical and physical properties of elements are periodic function of their atomic numbers?
A. Law of Octaves
C. Modern Periodic Law
B. Law of Triads
D. Periodic law
7. Which group will form salt after a chemical reaction?
A. alkaline earth metals
C. halogens
B. alkali metals
D. noble gases
8. The electron configuration of Phosphorus is 1s22s22p63s23p3. To what group does it belong?
A. 2
C. 5
B. 3
D. 6