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Chemistry 101 - Periodic Table, Elements, Molecules and Ions

Detailed quiz covering periodic table, classification of elements, molecules, ions, and chemical bonds.

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1. What does the periodic table organize elements based on?

Element density Atomic mass only Element color Atomic number, electron configuration, and chemical properties

2. What is Group 17 called?

Noble Gases Transition elements Halogens Alkaline Earth Metals

3. Which of the following are poor conductors of heat and electricity?

Noble Gases Metals Metalloids Non-metals

4. Which of the following is a good conductor of heat and electricity?

Metals Noble Gases Non-metals Metalloids

5. Cations are ions that:

Have no charge Are neutral Lose electrons and have a positive charge Gain electrons and have a negative charge

6. Monoatomic ions have:

No atoms More than one atom Only one atom Two atoms

7. What is Group 18 called?

Alkali Metals Noble Gases Halogens Transition elements

8. How many periods (rows) are in the periodic table?

12 18 7 10

9. Which of the following is an example of a cation?

Cl⁻ O²⁻ F⁻ Na⁺

10. Molecules are electrically:

Positive Neutral Negative Charged

11. What are ions?

Molecules with no charge Atoms or molecules that have lost or gained electrons, giving them a charge Neutral atoms Elements

12. Which of the following is an example of an anion?

F⁻ NH₄⁺ Mg²⁺ Na⁺

13. What is Group 2 called?

Noble Gases Halogens Alkali Metals Alkaline Earth Metals

14. What is a molecule?

A pure substance A group of two or more atoms chemically joined by a chemical bond A single atom An element

15. Elements in the same group have:

Same number of neutrons Similar properties Different properties Same atomic mass

16. Which of the following is an example of a molecule?

Sodium (Na) Iron (Fe) Water (H2O) Oxygen (O)

17. What is Group 1 called?

Alkali Metals Transition Elements Noble Gases Alkaline Earth Metals

18. How many groups (columns) are in the periodic table?

18 7 20 12

19. What type of bond involves sharing electrons between two non-metals?

Hydrogen bond Metallic bond Ionic bond Covalent bond

20. What type of bond involves transfer of electrons from a metal to a non-metal?

Covalent bond Metallic bond Hydrogen bond Ionic bond

21. Groups 3-12 are called:

Noble Gases Halogens Transition elements Alkali Metals

22. Which of the following is an example of a metalloid?

Copper (Cu) Silicon (Si) Oxygen (O) Iron (Fe)

23. Anions are ions that:

Have no charge Lose electrons and have a positive charge Gain electrons and have a negative charge Are neutral

24. Elements in the same period share:

The same chemical properties The same atomic number The same number of electron shells The same number of neutrons

25. Which elements have properties intermediate between metals and nonmetals?

Metals Metalloids Halogens Non-metals

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