Problem Analysis:
The task involves filling in the blanks based on the properties of metals, non-metals, and noble gases. The options provided in the table must be matched correctly to answer the questions.
Key Concepts:
1.
Noble Gases: These elements have a full outer shell (8 electrons) and are highly stable.
2.
Metals: These elements tend to lose electrons to achieve a stable configuration.
3.
Non-Metals: These elements tend to gain electrons to achieve a stable configuration.
4.
Octet Rule: Elements aim to have 8 electrons in their outermost shell for stability.
5.
Ions:
-
Cations: Positive ions formed by metals losing electrons.
-
Anions: Negative ions formed by non-metals gaining electrons.
Solution:
#### Step-by-Step Matching:
1.
Noble gases have ________ electrons in the outermost shell.
- Noble gases have a full outer shell with 8 electrons.
-
Answer: eight
2.
Metals have ________ electrons in the outermost shell.
- Metals typically have 1, 2, or 3 electrons in their outermost shell.
-
Answer: 1, 2 or 3
3.
Non-metals have ________ electrons in the outermost shell.
- Non-metals typically have 4, 5, 6, or 7 electrons in their outermost shell.
-
Answer: 4, 5, 6 or 7
4.
The meaning of ‘octet’ is ________.
- The term "octet" refers to having 8 electrons in the outermost shell.
-
Answer: to have 8 electrons in outermost shell
5.
Elements in order to become stable ________ electrons.
- Elements gain or lose electrons to achieve a stable configuration (8 electrons in the outer shell).
-
Answer: loose or gain
6.
Metals ________ electrons in order to become stable.
- Metals lose electrons to achieve a stable configuration.
-
Answer: loose
7.
Non-metals ________ electrons in order to become stable.
- Non-metals gain electrons to achieve a stable configuration.
-
Answer: gain
8.
Metals form ________ ions.
- Metals lose electrons and form positive ions (cations).
-
Answer: positive
9.
Non-metals form ________ ions.
- Non-metals gain electrons and form negative ions (anions).
-
Answer: negative
10.
Positive ions are also known as ________.
- Positive ions are called cations.
-
Answer: cations
Final Answers:
1. eight
2. 1, 2 or 3
3. 4, 5, 6 or 7
4. to have 8 electrons in outermost shell
5. loose or gain
6. loose
7. gain
8. positive
9. negative
10. cations
Boxed Final Answer:
\[
\boxed{
\text{1. eight, 2. 1, 2 or 3, 3. 4, 5, 6 or 7, 4. to have 8 electrons in outermost shell, 5. loose or gain, 6. loose, 7. gain, 8. positive, 9. negative, 10. cations}
}
\]
Parent Tip: Review the logic above to help your child master the concept of metals and nonmetals worksheet.
