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Questions and Answers
What is the basis for arranging the elements in a group in the periodic table?
What is the basis for arranging the elements in a group in the periodic table?
- Arrangement based on electronegativity
- Increasing proton number (correct)
- Decreasing electron shells
- Increasing atomic mass
Which group of elements is known as alkali metals in the periodic table?
Which group of elements is known as alkali metals in the periodic table?
- Group 8
- Group 2
- Group 7
- Group 1 (correct)
How many periods are there in the periodic table?
How many periods are there in the periodic table?
- 4
- 7 (correct)
- 8
- 6
What is the electronic configuration and the period of the element K(19)?
What is the electronic configuration and the period of the element K(19)?
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Which group does the element Cl(17) belong to in the periodic table?
Which group does the element Cl(17) belong to in the periodic table?
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Study Notes
Periodic Table Organization
- The basis for arranging elements in a group in the periodic table is not specified in the provided text.
Element Groups
- Alkali metals are a group of elements in the periodic table.
Periodic Table Structure
- There are no specific number of periods mentioned in the provided text, but typically, there are 7 periods in the periodic table.
Element Properties
- Element K (19) has an electronic configuration that is not specified in the provided text, but typically, it is [Ar] 4s1. It is in period 4.
Element Groups
- Element Cl (17) belongs to the halogen group in the periodic table.
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