Science 9 M2 PA

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CAMARINES NORTE NATIONAL HIGH SCHOOL PARALLEL ASSESSMENT SCIENCE 9 QUARTER 2, WEEK 2 MODULE 2: TYPES OF COMPOUNDS BASED ON THEIR PROPERTIES Name : __________________________Section: ____________________Score:_____________ DIRECTION. Read each question carefully and write the letter of your answer on the space provided before the number. ________ 1. Which of the properties of atoms is the most suitable reference for the kind of bond that will take place between/among them? a. atomic size c. ionization energy b. electronegativity d. electron affinity _________2. What type of particle is produced after covalent bonding?? a. atom b. molecule c. ion d. electron ________ 3. How does ionic bonding take place? a. Two non-metallic elements of different kinds form strong forces of attraction. b. Two non-metallic element of the same kind form strong forces of attraction. c. A non-metallic element like fluorine is attracted to a metallic element like sodium. d. A metallic element like sodium transfers an electron to a non-metallic element like fluorine. ________4. What kind of chemical bond will form between two oxygen atoms? a. ionic bond b. metallic bond c. polar covalent bond d. nonpolar covalent ________5. Which of the following type of bonds will have the highest electrical and thermal conductivity? a. ionic bond b. metallic bond c. polar covalent bond d. nonpolar covalent ________6. Why can metals be hammered without breaking? a. They are ductile. c. They are malleable. b. They are not brittle. d. Their particles are strong. ________7. When does covalent bonding take place? a. It takes place when atoms share electrons with one another. b. It takes place when the attractions between atoms is strong. c. It takes place when atoms collide with one another. d. It takes place when atoms attain stability. ________8. Nitrogen belongs to family 5A and it is diatomic. How many nonpolar covalent bonds will there be in N2 molecule? a. 1 b. 2 c. 3 d. 4 ________9. Which of the following will have the highest melting temperature? a. sodium chloride (salt) c. sucrose (table sugar) b. paraffin wax (candle wax) d. lead wire ________10. Which among the following shows that an atom is stable? a. Having 2 valence electrons. c. having 6 valence electrons b. Having 4 valence electrons d. having 8 valence electrons ________11. What will most likely to happen to a non-metallic atom after ionic bonding? I. It forms a cation III. It becomes stable II. It forms an anion IV. It becomes unstable a. I and II c. III and IV b. II and III d. I and IV ________12. Why do atoms react with one another to form chemical bonds? a. To attain stability c. to form molecules b. To form compounds d. to produce ions ________13. Which of the following best characterizes an ionic bond? a. It is formed by electron transfer. b. It is formed by sharing of electrons. c. It is formed between two oppositely charged particles. d. It is formed between two particles of the same charge. ________14. Which of the following events does not happen for most atoms in order to satisfy the requirement of having eight outermost or valence electrons as stated by the Octet Rule? a. Losing of electrons c. Sharing of electrons with other atoms b. Gaining of electrons d. Alteration of the particles in the nucleus ________15. Which of the following subatomic particles is involved during a chemical reaction that leads to a chemical change? a. protons c. electrons b. neutrons d. all of the above

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