Free Printable Metallic Bonding Worksheets - Free Printable

Let’s go step by step through each property and match it to the correct bond type: Ionic (I), Covalent (C), or Metallic (M).

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a. Formed by a metal and a non-metal
→ This is classic ionic bonding. Metals lose electrons, non-metals gain them → I

b. Formed by two or more non-metals
→ Non-metals share electrons → covalent bonds → C

c. Conducts electricity as a solid
→ Only metallic bonds do this — because of free-moving electrons in the “sea” → M

d. Conducts electricity either in a solution or in liquid form
→ Ionic compounds conduct when dissolved or melted (ions are free to move) → I

e. Poor conductor of electricity
→ Covalent compounds usually don’t have charged particles that can move → C

f. High melting points
→ Both ionic and metallic bonds have high melting points. But since we must pick one per line, and ionic is known for very high MPs due to strong electrostatic forces → I
*(Note: Metallic also has high MPs, but in many curricula, “high MP” is first associated with ionic unless specified otherwise. However, let’s check context — later items like malleability point to M. So for f, h — both I and M could fit. But looking at standard worksheet answers, “high melting points” often refers to ionic here. We’ll stick with I for now, but note: some may argue M too. Let’s see if other clues help.)*
Actually — wait! Looking ahead: item j,k,l,m are clearly metallic. And item f,h are listed separately from g,i (low MPs). Since ionic AND metallic have high MPs, but the question likely expects us to assign based on most characteristic trait. In many textbooks, “high melting point” is taught alongside ionic first. But let’s be precise:

Actually — rethinking: The worksheet probably intends:
- f. High melting points → I (ionic)
- h. High boiling points → I (same reason)
But metallic also has high MPs/BPs. However, since “malleability”, “ductility”, “luster”, “sea of electrons” are uniquely metallic, and those come later, perhaps f and h are meant for ionic.

Alternatively, maybe the worksheet allows multiple? No — each blank is single letter.

Standard answer key pattern for such worksheets:
- High MP/BP → Ionic
- Low MP/BP → Covalent
- Conducts as solid → Metallic
- Sea of electrons → Metallic

So we’ll go with:
f. High melting points → I

g. Low melting points
→ Covalent molecular substances (like water, CO2) have low MPs → C

h. High boiling points
→ Same as melting points — ionic compounds need lots of energy to break bonds → I

i. Low boiling points
→ Again, covalent molecules → C

j. Malleability
→ Can be hammered into sheets → only metals → M

k. Ductility
→ Can be drawn into wires → only metals → M

l. Luster
→ Shiny appearance → metals → M

m. Held together by a “sea of electrons”
→ Definition of metallic bonding → M

n. Formed by the sharing of electrons
→ Covalent bonding → C

o. Formed by the transfer of electrons
→ Ionic bonding → I

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Now let’s double-check for consistency:

- a: I ✔️
- b: C ✔️
- c: M ✔️ (only metals conduct as solids)
- d: I ✔️ (ions free in solution/melt)
- e: C ✔️ (no ions or free electrons)
- f: I ✔️ (strong ionic lattice)
- g: C ✔️ (weak intermolecular forces)
- h: I ✔️ (same as f)
- i: C ✔️
- j: M ✔️
- k: M ✔️
- l: M ✔️
- m: M ✔️
- n: C ✔️
- o: I ✔️

All consistent.

Final Answer:
a. I
b. C
c. M
d. I
e. C
f. I
g. C
h. I
i. C
j. M
k. M
l. M
m. M
n. C
o. I