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Questions and Answers
Which group of elements in the Periodic Table are collectively known as the alkali metals?
Which group of elements in the Periodic Table are collectively known as the alkali metals?
- Group 2
- Group 3
- Group 1 (correct)
- Group 4
Which of the following elements is NOT considered an alkali metal?
Which of the following elements is NOT considered an alkali metal?
- Potassium
- Lithium
- Sodium
- Calcium (correct)
What is the main characteristic of the s-block elements in the Periodic Table?
What is the main characteristic of the s-block elements in the Periodic Table?
- Their last electron enters the outermost d-orbital
- Their last electron enters the outermost s-orbital (correct)
- Their last electron enters the outermost f-orbital
- Their last electron enters the outermost p-orbital
Which group of elements in the Periodic Table are commonly known as the alkaline earth metals?
Which group of elements in the Periodic Table are commonly known as the alkaline earth metals?
Why are the alkali metals called 'alkali' metals?
Why are the alkali metals called 'alkali' metals?
Which group of elements in the Periodic Table belongs to the s-block?
Which group of elements in the Periodic Table belongs to the s-block?
Which of the following elements is NOT an alkali metal?
Which of the following elements is NOT an alkali metal?
Why are the alkaline earth metals called 'alkaline' metals?
Why are the alkaline earth metals called 'alkaline' metals?
Which element is the first element of the alkali metals?
Which element is the first element of the alkali metals?
How many electrons can the s-orbital accommodate?
How many electrons can the s-orbital accommodate?
Flashcards
Alkali Metals
Alkali Metals
Group 1 elements; highly reactive metals.
s-block elements
s-block elements
The last electron enters the outermost s-orbital.
Alkaline Earth Metals
Alkaline Earth Metals
Group 2 elements, less reactive than alkali metals.
Why 'alkali'?
Why 'alkali'?
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Why 'alkaline'?
Why 'alkaline'?
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First Alkali Metal
First Alkali Metal
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s-orbital capacity
s-orbital capacity
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Study Notes
Alkali Metals
- The alkali metals are a group of elements in the Periodic Table.
- The alkali metals are also known as Group 1 elements.
- The main characteristic of the alkali metals is that they are very reactive and readily lose one electron to form a positive ion.
Non-Alkali Metals
- The noble gases, such as Helium (He), are not considered alkali metals.
Alkaline Earth Metals
- The alkaline earth metals are a group of elements in the Periodic Table.
- The alkaline earth metals are also known as Group 2 elements.
- The alkaline earth metals are less reactive than the alkali metals.
Origin of Names
- The alkali metals are called 'alkali' because they form alkaline solutions when they react with water.
- The alkaline earth metals are called 'alkaline' because they form alkaline solutions when they react with water.
S-Block Elements
- The s-block elements are a group of elements in the Periodic Table.
- The alkali metals and the alkaline earth metals belong to the s-block.
- The s-block elements are characterized by having one or two electrons in the outermost energy level.
Properties of S-Orbital
- The s-orbital can accommodate two electrons.
Lithium
- Lithium is the first element of the alkali metals.
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