Periodic Table - Test 4

1. The elements in the periodic table are in the order of increasing:

    A. atomic weight
    B. atomic number
    C. neutron number
    D. mass number

2. The last two electrons in calcium (element 20) are in a:

    A. 2s orbital
    B. 3s orbital
    C. 4s orbital
    D. 3p orbital

3. The gas which differs in molecular composition from that of all of the others listed below is:

    A. hydrogen
    B. nitrogen
    C. neon
    D. chlorine

4. The smallest particle of an element that can enter into combination with other elements is:

    A. an atom
    B. a crystal
    C. a solid
    D. a molecule

5. Both positive and negative valence may be exhibited by:

    A. hydrogen
    B. chlorine
    C. neon
    D. carbon

6. Silicon carbide:

    A. contains oxygen
    B. is used as a lubricant
    C. is a conductor of electricity
    D. is made by the action of coke on silica

7. In its chemical action with other elements, sulfur most closely resembles:

    A. oxygen
    B. phosphorus
    C. hydrogen
    D. carbon

8. Which of the following elements does not exist in diatomic form?

    A. argon
    B. oxygen
    C. fluorine
    D. nitrogen

9. A substance that cannot be decomposed by chemical means is:

    A. sugar
    B. air
    C. water
    D. mercury

10. Sodium and potassium:

    A. are reducing agents
    B. are oxidizing agents
    C. have complete outer rings
    D. form ions with a negative charge

Degree Programs
Popular Majors
    Test Prep     Privacy Policy     Terms of Use     About     Contact

This website is not affiliated with any educational organization, and all trademarks are the exclusive property of the respective owners. Kooksta.com is the work of a group of students in Bangkok, and all copyrighted works on this website are offered for educational purposes only, governed by the four-factor rule, section 107 of the US Copyright Act, 1976.