Metals, Nonmetals, Metalloids, Noble Gases

LESSON

Indicators

●SC2.1 M1/1 Explain physical properties of metals, nonmetals and metalloids using
empirical evidence obtained from observations and tests, and use the information
obtained from various data sources including the classifying of metals, nonmetals
and metalloids

●SC2.1 M1/2 Analyze results from the use of metals, nonmetals, metalloids and
radioactive elements that affect living organisms, environment, economy and
society from the collected information

●SC2.1 M1/3 Realize the value of using metals, nonmetals, metalloids and radioactive
elements by proposing guidelines of using elements safely and worthly

●SC2.1 M1/4 Compare the boiling and melting points of pure substances and
mixtures by measuring temperature, drawing graphs to interpret data or information

●SC2.1 M1/5 Explain and compare the density of pure substances and mixtures

●SC2.1 M1/6 Use tools to measure mass and volume of pure substances and
mixtures

3Nonmetals and Metalloids

LESSON

Vocabulary

nonmetal (อโลหะ)

insulator (ฉนวน)

metalloid (กึ่งโลหะ)

semiconductor (สารกึ่งตัวนํา)

allotrope (อัญรูป)

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LESSON

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LESSON

The Elements of Life

More than 96 per cent of the mass
of the human body comes from
four nonmetals– oxygen, carbon,
hydrogen, and nitrogen.

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Multiple Choice

What element is the most abundant in the human body?

• Hydrogen

• Oxygen

• Phosphorus

• Calcium

Multiple Choice

The human body is made up predominantly of ..

• metals

• metalloids

• nonmetals

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Multiple Choice

Any non-metals that are solid at room temperature share what characteristic?

• The are very dense

• They are very brittle

• The are very hard

• They are very shiny

Multiple Choice

Nonmetals are good conductors.

• True

• False

LESSON

●

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LESSON

Nonmetals

● Group 14 contains one nonmetal - Carbon
● Carbon can exist in 4 different forms;

○ Amorphous
○ Graphite
○ Diamond
○ Fullerene

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LESSON

Nonmetals

● Carbon shares some properties of metals but

none of its allotropes (อัญรูป) demonstrate all the
same properties.

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Multiple Select

Which of the following are allotropes of carbon?

• Deuterium

• Graphite

• Fullerine

• Coal

• Diamond

LESSON

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LESSON

Nonmetals

● Nitrogen & phosphorus are the nonmetals in

group 15

● Nitrogen is a colorless gas that is the most

abundant component of the atmosphere.

● Phosphorus is a highly reactive brittle solid that

has many allotropes.

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Multiple Select

What type of elements fo you find in group 15?

• Metals

• Metalloids

• Nonmetals

LESSON

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LESSON

Nonmetals

● Oxygen, Sulphur & Selenium are the nonmetals in

group 16.

● Oxygen is a colorless gas that is essential for life.
● Sulphur is a poisonous brittle yellow solid
● Selenium is a solid, its allotropes can be either

grey or red in colour

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Dropdown

​

Select answer

is a group 16 element that is essential for life.

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Nonmetals

●

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Multiple Choice

What name is give to group 17 on the periodic table?

• Alkali metals

• Alkaline Earth metals

• Halogens

• Nobel Gases

Multiple Choice

The halogens exist in nature as free elements.

• True

• False

LESSON

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LESSON

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Multiple Choice

The noble gases are the most reactive of the element groups.

• True

• False

Drag and Drop

The elements in group 18 are all​

Placeholder

Drag these tiles and drop them in the correct blank above

gases

solids

liquids

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LESSON

Metalloids

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Multiple Select

Which of the following elements are metalloids?

• Germanium

• Carbon

• Boron

• silicon

Multiple Select

Metalloids display some of the properties of ..

• Metals

• Nonmetals

Multiple Choice

A semiconductor conducts electricity at high temperatures at high temperatures but not at low temperatures.

• True

• False