The video tutorial explores the physical properties of metals and non-metals, such as luster, hardness, malleability, ductility, sonority, and conductivity of heat and electricity. It highlights the differences between metals and non-metals, noting exceptions like sodium, potassium, mercury, iodine, and diamond. The tutorial emphasizes that physical properties alone are insufficient for classification, suggesting the need to study chemical properties as well.

Why did scientists feel the need to group elements?

• To create new elements

• To sell them easily

• To study their physical and chemical properties

• To make them look organized

What is the term used to describe the shining surface of metals?

• Malleability

• Metallic luster

• Ductility

• Hardness

Which property allows metals to be beaten into thin sheets?

• Malleability

• Ductility

• Luster

• Sonority

What happens when you try to form wires from non-metals?

• They conduct electricity

• They break

• They form thin wires

• They become shiny

What is the property of producing a ringing sound when struck called?

• Sonority

• Ductility

• Luster

• Malleability

Why are non-metals used as handles for cookers and pans?

• They are hard

• They do not conduct heat

• They conduct heat

• They are shiny

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which of the following is a good conductor of electricity?

• Rubber

• Iron nail

• Coal piece

• Sulfur

Which metal is an exception and exists in liquid form?

• Sodium

• Mercury

• Potassium

• Iron

Which non-metal is known for its lustrous property?

• Phosphorus

• Iodine

• Carbon

• Sulfur

What must be studied in addition to physical properties to classify substances as metals or non-metals?

• Size

• Color

• Shape

• Chemical properties