Podcast
Questions and Answers
Alkali metals are ______, soft and not very dense.
Alkali metals are ______, soft and not very dense.
silvery
A metal in the same ______ as Magnesium is Calcium.
A metal in the same ______ as Magnesium is Calcium.
group
The ______ objective is to articulate the properties and trends in group 1 elements.
The ______ objective is to articulate the properties and trends in group 1 elements.
learning
Alkali metals can easily be cut with a ______ knife.
Alkali metals can easily be cut with a ______ knife.
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Group 1 elements are also known as __________ metals.
Group 1 elements are also known as __________ metals.
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Group 1 elements have __________ electron(s) in their outer shell.
Group 1 elements have __________ electron(s) in their outer shell.
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As you go down group 1, the melting and __________ points decrease.
As you go down group 1, the melting and __________ points decrease.
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Non-metals are found on the __________ side of the Periodic Table.
Non-metals are found on the __________ side of the Periodic Table.
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Alkali metals share similar properties due to their __________ configuration.
Alkali metals share similar properties due to their __________ configuration.
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Alkali metals belong to ______ group in the periodic table.
Alkali metals belong to ______ group in the periodic table.
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The ______ points of group 1 metals tend to decrease down the group.
The ______ points of group 1 metals tend to decrease down the group.
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Group 1 elements are highly reactive and are therefore stored in ______.
Group 1 elements are highly reactive and are therefore stored in ______.
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To evaluate the trends in group 1 elements, one must ______ their properties.
To evaluate the trends in group 1 elements, one must ______ their properties.
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The process by which students assess their understanding is called ______-Assessment.
The process by which students assess their understanding is called ______-Assessment.
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In the lesson, students will ______ the properties and trends of group 1 elements.
In the lesson, students will ______ the properties and trends of group 1 elements.
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The procedure of detailing the findings after exploration is known as ______.
The procedure of detailing the findings after exploration is known as ______.
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Students will ______ data on the boiling and melting points to see trends.
Students will ______ data on the boiling and melting points to see trends.
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The topic of the lesson is trends in Group ______ elements.
The topic of the lesson is trends in Group ______ elements.
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Lithium is used for making alloys, especially with ______ to create light and strong aircraft parts.
Lithium is used for making alloys, especially with ______ to create light and strong aircraft parts.
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Sodium is used to produce ______ chloride gas, which is important in various chemical processes.
Sodium is used to produce ______ chloride gas, which is important in various chemical processes.
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Sodium vapor lamps are used in street lighting, emitting a characteristic ______ light.
Sodium vapor lamps are used in street lighting, emitting a characteristic ______ light.
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The size of the atoms in Group 1 ______ as you go down the group.
The size of the atoms in Group 1 ______ as you go down the group.
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Sodium wire is coated with plastics to exclude ______.
Sodium wire is coated with plastics to exclude ______.
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Sodium cyanide is used in the extraction of ______ and gold.
Sodium cyanide is used in the extraction of ______ and gold.
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The process of evaluating the properties of Group 1 elements is part of the lesson's learning ______.
The process of evaluating the properties of Group 1 elements is part of the lesson's learning ______.
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Study Notes
Unit 2: Properties of Materials
- Unit focuses on the properties of materials, specifically those in Group 1 of the periodic table.
Previous Knowledge
- Students should already be familiar with the periodic table of elements.
- Key elements, including Magnesium, are mentioned for further study.
Group 1 of the Periodic Table
- Group 1 elements are called alkali metals.
- Hydrogen is the lightest element with an atomic number of 1.
- Alkali metals include Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium.
- Alkali metals are silvery, soft, and not very dense, easily cut with a butter knife.
Trends in Group 1
- Properties of group 1 elements (e.g., melting/boiling points) change as you go down the group.
- Melting and boiling points decrease as you move down the group.
Electronic Structure of Group 1 elements
- Lithium, sodium, and potassium atoms are shown in relation to their electronic structure, going down the group
- Describes increasing distance between the nucleus and outer shell electrons.
Properties of Group 1 Elements in a Table
- Provides atomic number, mass number, melting point, and boiling point of Lithium, Sodium, and Potassium.
- Each element's key measurements are tabulated.
Real-Life Applications of Alkali Metals
- Lithium is used in alloys for light aircraft parts.
- Sodium chloride is used in food and other products.
- Molten sodium is a coolant in nuclear reactors.
- Sodium wire is used in electrical circuits, often coated with plastic to prevent moisture.
- Sodium vapor lamps use sodium emission to provide yellow light for streetlights.
Plenary Questions
- Discussion on how atomic size changes as you move down Group 1.
- Discussion about why the group of metals are considered alkali metals.
Home Learning
- Students should research the applications of alkali metals.
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Description
This quiz covers the properties of materials focusing on Group 1 of the periodic table, known as alkali metals. Students will explore key elements such as Lithium, Sodium, and examine trends like melting and boiling points. A solid understanding of the periodic table is essential for this assessment.
