IES los Álamos
3rd ESO
Physics and Chemistry Department
CHEMICAL BOND-2
1. What does an ionic bond involve?
a. Sharing electrons between atoms.
b. Moving electrons between atoms.
c. Forming free electrons.
2. Where do electrons lost by metal atoms during the formation of ions come from?
a. The highest occupied energy level.
b. The lowest occupied energy level.
c. The inner shell.
3. Which of the statements below is correct?
a. Metal atoms form negative ions and non-metal atoms form positive ions.
b. Metal atoms form positive ions and non-metal atoms form negative ions.
c. Metal ions form positive atoms and non-metal ions form negative atoms.
4. An element forms ions with a 2+ charge. Which group is the element mostly likely to be in?
a. Group 2
b. Group 16
c. Group 18
5. What is an ionic bond?
a. A force of attraction between positive ions.
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b. A force of attraction between negative ions.
c. A force of attraction between oppositely charged ions.
What does a covalent bond involve?
a. Sharing electrons between atoms
b. Moving electrons between atoms
c. Forming free electrons
Where do the electrons in a covalent bond come from?
a. The highest occupied energy level
b. The lowest occupied energy level
c. The inner shell
Nitrogen is in group 15. How many covalent bonds can it form?
a. 8
b. 5 c. 3
Which of the statements below is correct?
a. Ionic bonds are forces of attraction between oppositely-charged ions.
b. Ionic bonds are forces of attraction between oppositely-charged atoms.
c. Ionic bonds are forces of attraction between positively-charged ions.
Why do ionic compounds have high melting and boiling points?
a. There are strong bonds between their atoms.
b. There are strong bonds between their ions.
c. There are strong bonds between their molecules.
In what physical state or states do ionic substances conduct electricity?
a. Solid or dissolved in water
b. Liquid or dissolved in water
c. Solid or liquid
Worksheet_Chemical Bond
1
IES los Álamos
Physics and Chemistry Department
12. Which of the following statements is true of substances with a simple molecular structure?
a. They have low melting points and conduct electricity.
b. They have low melting points and do not conduct electricity.
c. They have high melting points and do not conduct electricity.
13. Which of the following statements is true of diamond?
a. Each carbon atom is covalently bonded to three other carbon atoms.
b. Each carbon atom is covalently bonded to four other carbon atoms.
c. There are free electrons.
14. Why are metals good conductors of electricity?
a. They contain ions that are free to move.
b. They contain atoms that are free to move.
c. They contain electrons that are free to move.
15. What happens to a sodium atom when it reacts with chlorine?
a. It gains an electron
b. It loses an electron
c. It gains a proton
16. What happens to a bromine atom when it reacts with potassium?
a. It gains an electron
b. It loses an electron
c. It gains a proton
17. In lithium chloride, how many electrons are in the outer shell of the chloride ion?
a. One
b. Seven
c. Eight
18. Which atoms gain electrons to form negative ions?
a. metals
b. non-metals
c. solids
19. Ions have the same electron structure as which group of elements?
a. group 1
b. group 17
c. group 18
20. How many electrons does a metal atom lose to form an ion?
a. all of them
b. all of those in the inner shell
c. all of those in the outer shell
21. A magnesium atom has the electron arrangement 2.8.2. What is the electron arrangement of a
magnesium ion?
a. 2.8
b. 2.8.8
c. 2.8.2
22. A chlorine atom has the proton number 17. What is the electron arrangement of a chloride ion?
b. 2.8
b. 2.8.8
c. 2.8.7
Worksheet_Chemical Bond
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