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Metals and Non Metals: Properties and Uses Video Lecture | Science (Curiosity) Class 7 - New NCERT

FAQs on Metals and Non Metals: Properties and Uses Video Lecture - Science (Curiosity) Class 7 - New NCERT

1. What are the main differences between metals and non-metals?

Ans. The main differences between metals and non-metals include their physical and chemical properties. Metals are typically shiny, good conductors of heat and electricity, malleable, and ductile. They tend to lose electrons during chemical reactions. Non-metals, on the other hand, are usually dull, poor conductors, brittle in solid form, and can gain or share electrons during reactions.

2. What are some common examples of metals and non-metals?

Ans. Common examples of metals include iron, copper, aluminum, and gold. Non-metals include oxygen, nitrogen, sulfur, and carbon. While metals are often found in solid form, non-metals can exist in gas, liquid, or solid states.

3. What are the uses of metals in everyday life?

Ans. Metals have numerous uses in everyday life. For example, aluminum is used in packaging and transportation due to its lightweight properties. Iron is used in construction for buildings and bridges. Copper is widely used in electrical wiring due to its excellent conductivity.

4. Why are non-metals important in biological processes?

Ans. Non-metals are crucial in biological processes because they are essential components of many molecules in living organisms. For example, carbon is a fundamental building block of life, forming the backbone of organic molecules. Oxygen is vital for respiration, while nitrogen is a key component of proteins and nucleic acids.

5. How do metals and non-metals react with each other?

Ans. Metals and non-metals typically react through the transfer of electrons. Metals tend to lose electrons, becoming positively charged ions, while non-metals gain electrons, becoming negatively charged ions. This transfer leads to the formation of ionic compounds, such as sodium chloride (table salt), where sodium (a metal) reacts with chlorine (a non-metal).

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Oct 05, 2025 Last updated

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	Science (Curiosity) Class 7 - New NCERT 80 videos\|224 docs\|12 tests

Science (Curiosity) Class 7 - New NCERT

80 videos|224 docs|12 tests

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