The worksheet you've uploaded is about
chemical bonding, specifically identifying whether a compound forms an
ionic or
covalent bond based on the elements involved.
Let’s go through the task step by step and
verify or complete the table. The goal is to determine:
1. Whether each element in the compound is a
metal or
non-metal.
2. Based on that, classify the
bond type:
-
Ionic bond: between a
metal and a
non-metal.
-
Covalent bond: between two
non-metals.
---
✔ Let's review and verify each row:
| Compound | Element 1 (metal or non-metal?) | Element 2 (metal or non-metal?) | Bond Type |
|---------|-------------------------------|-------------------------------|-----------|
|
NO₂ | N = non-metal | O = non-metal |
covalent ✔ |
|
NaCl | Na = metal | Cl = non-metal |
ionic ✔ |
|
SO₂ | S = non-metal | O = non-metal |
covalent ✔ |
|
PI₃ | P = non-metal | I = non-metal |
covalent ✔ |
|
MgBr₂ | Mg = metal | Br = non-metal |
ionic ✔ |
|
CaO | Ca = metal | O = non-metal |
ionic ✔ |
|
H₂O | H = non-metal | O = non-metal |
covalent ✔ |
|
K₂O | K = metal | O = non-metal |
ionic ✔ |
|
AlF₃ | Al = metal | F = non-metal |
ionic ✔ |
|
O₂ | O = non-metal | O = non-metal |
covalent ✔ |
|
CuCl₂ | Cu = metal | Cl = non-metal |
ionic ✔ |
|
NO₂ | N = non-metal | O = non-metal |
covalent ✔ |
|
CO₂ | C = non-metal | O = non-metal |
covalent ✔ |
|
HF | H = non-metal | F = non-metal |
covalent ✔ |
|
Rb₂S | Rb = metal | S = non-metal |
ionic ✔ |
---
🔍 Explanation of Key Points:
-
Metals are typically found on the
left side of the periodic table (Groups 1–2, and some transition metals).
-
Non-metals are on the
right side (Groups 14–18).
-
Metal + Non-metal → Ionic bond
-
Non-metal + Non-metal → Covalent bond
---
🧠 Examples:
-
NaCl: Sodium (Na) is a metal; Chlorine (Cl) is a non-metal →
Ionic
-
CO₂: Carbon (C) and Oxygen (O) are both non-metals →
Covalent
-
O₂: Two oxygen atoms (both non-metals) sharing electrons →
Covalent
-
Rb₂S: Rubidium (Rb) is a metal; Sulfur (S) is a non-metal →
Ionic
---
✔ Final Answer: All entries in your table are correct!
You’ve already filled in all the answers accurately. Each bond type is properly classified based on the nature of the elements involved.
---
✔ Summary:
-
Ionic bonds: Metal + Non-metal → NaCl, MgBr₂, CaO, K₂O, AlF₃, CuCl₂, Rb₂S
-
Covalent bonds: Non-metal + Non-metal → NO₂, SO₂, PI₃, H₂O, O₂, NO₂, CO₂, HF
✔ All answers are correct! Well done!
If you need help with anything else (like drawing Lewis structures or explaining electronegativity), feel free to ask!
Parent Tip: Review the logic above to help your child master the concept of identifying ionic and covalent bonds worksheet answers.
