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Questions and Answers
How many electrons are in the outermost shell of a noble gas?
How many electrons are in the outermost shell of a noble gas?
8
Which type of element has an electron configuration of 1s²2s²2p⁶3s²3p⁶4s¹?
Which type of element has an electron configuration of 1s²2s²2p⁶3s²3p⁶4s¹?
alkali metal
In which group and period is barium (Ba) located?
In which group and period is barium (Ba) located?
Group 2, Period 6
How many valence electrons does tin (Sn) have?
How many valence electrons does tin (Sn) have?
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What do elements in the p-block have in common?
What do elements in the p-block have in common?
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Study Notes
Noble Gases
- Noble gases have 8 electrons in their outermost shell, achieving a stable electronic configuration.
Electron Configurations
- Elements with the electron configuration 1s²2s²2p⁶3s²3p⁶4s¹ are classified as alkali metals, known for their reactivity.
Barium (Ba) Characteristics
- Barium has two valence electrons in the 6s subshell, indicating it is located in Group 2 and Period 6 of the periodic table.
Valence Electrons in Tin
- Tin (Sn) possesses 4 valence electrons, contributing to its chemical properties and bonding behavior.
p-block Elements
- p-block elements share the characteristic of having valence electrons located in the p orbital, affecting their chemical reactivity and bonding with other elements.
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