Let’s solve this step by step.
First, we need to understand what metals, nonmetals, and metalloids are on the periodic table:
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Metals are usually on the left side and middle of the periodic table. They’re shiny, conduct electricity, and are solid at room temperature (except mercury). In the first diagram, they’re colored pink.
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Nonmetals are on the right side — including hydrogen (top left) and the noble gases (far right column). They don’t conduct well and can be gases or brittle solids. In the first diagram, they’re colored blue.
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Metalloids are in between metals and nonmetals — along a “staircase” line starting from boron (B) down to polonium (Po). They have properties of both metals and nonmetals. In the first diagram, they’re colored yellow.
Now let’s look at Q.1: Label the colors.
From the color key under the big periodic table:
- Pink box → Metals
- Yellow box → Metalloids
- Blue box → Nonmetals
So for Q.1:
→ Pink = Metals
→ Yellow = Metalloids
→ Blue = Nonmetals
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Now Q.3: Identify each element as metal, nonmetal, or metalloid using the small periodic table shown.
We’ll go one by one:
1.
Hydrogen (H) – Top left. Even though it’s on the left, it’s a gas and behaves like a nonmetal. →
Nonmetal
2.
Helium (He) – Far right top. Noble gas. →
Nonmetal
3.
Lithium (Li) – Left side, group 1. Alkali metal. →
Metal
4.
Boron (B) – On the staircase line. First metalloid. →
Metalloid
5.
Oxygen (O) – Right side, gas. →
Nonmetal
6.
Aluminum (Al) – Below boron, but actually considered a metal (even though near the line). →
Metal
7.
Silicon (Si) – Right below carbon, on the staircase. Classic metalloid. →
Metalloid
8.
Chlorine (Cl) – Right side, halogen gas. →
Nonmetal
9.
Calcium (Ca) – Left side, alkaline earth metal. →
Metal
10.
Krypton (Kr) – Far right, noble gas. →
Nonmetal
11.
Antimony (Sb) – On the staircase, below arsenic. Metalloid. →
Metalloid
12.
Gold (Au) – Middle-bottom, transition metal. Very much a metal. →
Metal
Let me double-check any tricky ones:
- Aluminum is sometimes confused because it’s next to the metalloids, but it’s definitely classified as a metal.
- Antimony is a metalloid — yes, it’s on the staircase.
- Hydrogen is always a nonmetal, even though it’s on the left.
All good.
Final Answer:
Q.1:
- Pink: Metals
- Yellow: Metalloids
- Blue: Nonmetals
Q.3:
- Hydrogen (H): Nonmetal
- Helium (He): Nonmetal
- Lithium (Li): Metal
- Boron (B): Metalloid
- Oxygen (O): Nonmetal
- Aluminum (Al): Metal
- Silicon (Si): Metalloid
- Chlorine (Cl): Nonmetal
- Calcium (Ca): Metal
- Krypton (Kr): Nonmetal
- Antimony (Sb): Metalloid
- Gold (Au): Metal
Parent Tip: Review the logic above to help your child master the concept of metals nonmetals metalloids worksheet.