SOLUTION: Recall of metals non metals and metalloids worksheet ... - Free Printable

You're working on Activity 3, Part A: Metals, Nonmetals, and Metalloids Cut Off — a hands-on sorting and categorization task based on the periodic table.

Since I can’t see or interact with the physical image or cut-out pieces, I’ll give you a complete solution guide with:

✔ Color-coding instructions for the periodic table
✔ Which elements belong to Metals, Nonmetals, and Metalloids
✔ Which properties go with which category
✔ How to sort the cut-out element symbols

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## 🎯 GOAL:
Sort the elements and their properties into three columns: Metals, Nonmetals, and Metalloids.

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# 🔑 STEP 1: COLOR CODE THE PERIODIC TABLE

Use these color codes:

- METALS → YELLOW
*Includes all elements on the left and center of the periodic table (except Hydrogen), including transition metals, alkali metals, alkaline earth metals, lanthanides, actinides.*

- NONMETALS → BLUE
*Top right corner: H, C, N, O, F, P, S, Cl, Se, Br, I, Xe, Rn, He, Ne, Ar, Kr, etc.*

- METALLOIDS → GREEN
*The “stair-step” line elements: B, Si, Ge, As, Sb, Te, Po, At (sometimes only B, Si, Ge, As, Sb, Te are considered true metalloids)*

> 💡 Tip: Draw a “staircase” from Boron (B) down to Polonium (Po). Elements touching that staircase = Metalloids. Left of staircase = Metals. Right of staircase = Nonmetals.

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# ✂️ STEP 2 & 3: CUT OUT AND SORT ELEMENTS + PROPERTIES

You have cut-out boxes with:

- Element symbols at the bottom (like O, A, N, C, Si, Li, B, Ir, Z, Sr, T, F, S, H, P, X, G)
- Properties in boxes above (LUSTER, SEMICONDUCT, HIGH, MALLEABLE, etc.)

Let’s decode what each symbol and property means and assign them correctly.

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## 🧪 ELEMENT SYMBOLS — WHAT DO THEY STAND FOR?

Some symbols are standard, others may be typos or placeholders. Here’s the likely correct mapping:

| Symbol | Element | Category |
|--------|--------------|--------------|
| O | Oxygen | Nonmetal |
| A | ? (likely typo — maybe Ar/Argon?) | Nonmetal (if Argon) |
| N | Nitrogen | Nonmetal |
| C | Carbon | Nonmetal |
| Si | Silicon | Metalloid |
| Li | Lithium | Metal |
| B | Boron | Metalloid |
| Ir | Iridium | Metal |
| Z | ? (possibly Zn/Zinc — Metal) | Metal |
| Sr | Strontium | Metal |
| T | ? (maybe Ti/Titanium — Metal) | Metal |
| F | Fluorine | Nonmetal |
| S | Sulfur | Nonmetal |
| H | Hydrogen | Nonmetal |
| P | Phosphorus | Nonmetal |
| X | ? (maybe Xe/Xenon — Nonmetal) | Nonmetal |
| G | ? (maybe Ga/Gallium — Metal) | Metal |

> ❗ Note: Some symbols like "A", "T", "Z", "X", "G" are ambiguous. In classroom activities, they often represent common elements. We’ll assume:

- A = Argon (Ar) → Nonmetal
- T = Titanium (Ti) → Metal
- Z = Zinc (Zn) → Metal
- X = Xenon (Xe) → Nonmetal
- G = Gallium (Ga) → Metal

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## 📊 PROPERTIES — WHICH CATEGORY DO THEY BELONG TO?

Here’s how to sort the properties:

✔ METALS — Properties:

- LUSTER (shiny)
- MALLEABLE (can be hammered into sheets)
- Ductile (can be drawn into wires)
- Good conductors of heat and electricity
- High density
- High melting/boiling points (mostly)
- Sonorous (make sound when struck)

✔ NONMETALS — Properties:

- Dull (not lustrous)
- Brittle (if solid)
- Poor conductors (insulators)
- Low density
- Low melting/boiling points
- Can be gases, liquids, or solids

✔ METALLOIDS — Properties:

- Semiconductor (conducts electricity under certain conditions)
- Have properties of both metals and nonmetals
- Can be shiny or dull
- Brittle or malleable depending on element

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## 🧩 SORTING THE BOXES — FINAL ANSWER

You need to paste the cut-outs into 3 columns:

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🔶 COLUMN 1: METALS (YELLOW)

Elements:
- Li (Lithium)
- Ir (Iridium)
- Z (Zinc — assumed)
- Sr (Strontium)
- T (Titanium — assumed)
- G (Gallium — assumed)

Properties:
- LUSTER
- MALLEABLE
- (Also: DUCTILE, CONDUCTIVE, HIGH DENSITY — if any of those are in your cut-outs)

> ⚠️ “HIGH” — likely refers to high conductivity or high melting point → belongs to METALS.

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🔷 COLUMN 2: NONMETALS (BLUE)

Elements:
- O (Oxygen)
- A (Argon — assumed)
- N (Nitrogen)
- C (Carbon)
- F (Fluorine)
- S (Sulfur)
- H (Hydrogen)
- P (Phosphorus)
- X (Xenon — assumed)

Properties:
- (None listed in your cut-outs except possibly “HIGH” — but that doesn’t fit here unless it’s “high reactivity” — usually not assigned to nonmetals as a group)

> ❗ You don’t have many nonmetal-specific properties cut out — maybe “DULL”, “BRITTLE”, “INSULATOR” were meant to be there? But since only “LUSTER”, “SEMICONDUCT”, “HIGH”, “MALLEABLE” are shown — only “HIGH” might be misassigned.

> ✔ Actually — “HIGH” probably goes with Metals (high conductivity/melting point).

So Nonmetals column may only get elements, unless other property boxes exist.

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🟢 COLUMN 3: METALLOIDS (GREEN)

Elements:
- Si (Silicon)
- B (Boron)

Properties:
- SEMICONDUCT (this is the KEY property of metalloids!)

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## ✔ FINAL SORTED COLUMNS (as you should paste them):

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🟨 METALS COLUMN:

Elements: Li, Ir, Z, Sr, T, G
Properties: LUSTER, MALLEABLE, HIGH *(if “HIGH” means high conductivity/melting point)*

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🟦 NONMETALS COLUMN:

Elements: O, A, N, C, F, S, H, P, X
Properties: *(none of the given properties strongly fit — if you have more cut-outs like “DULL” or “BRITTLE”, add them here)*

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🟩 METALLOIDS COLUMN:

Elements: Si, B
Properties: SEMICONDUCT

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## 🖍️ ADDITIONAL NOTES:

- Color the periodic table using the stair-step method.
- Paste elements and properties into correct columns.
- If “HIGH” is ambiguous, it’s safest to put it with Metals (since metals have high melting points/conductivity).
- Make sure “SEMICONDUCT” is ONLY with Metalloids.
- “LUSTER” and “MALLEABLE” are classic Metal properties.

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## 📝 TEACHER’S CHECKLIST (for your reference):

✔ Colored periodic table correctly
✔ Cut out and sorted all elements
✔ Assigned properties to correct categories
✔ Pasted everything on page 3 (as directed)

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✔ You’re done! This activity reinforces how elements are grouped by physical and chemical properties — a foundational concept in chemistry.

Let me know if you want a printable answer sheet or need help with Part B!