Classification of the Elements
Flashcard
•
Science
•
9th - 12th Grade
•
Easy
Barbara White
Used 7+ times
FREE Resource
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14 questions
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1.
FLASHCARD QUESTION
Front
Valence Electrons Noun
[vay-luhns ih-lek-trons]
Back
Valence Electrons
Electrons in the outermost energy level of an atom that are involved in forming chemical bonds and determining chemical properties.
Example: This Bohr model of a Sodium atom shows electrons in shells; the single electron in the outermost shell is its one valence electron.
2.
FLASHCARD QUESTION
Front
Electron Configuration Noun
[ih-lek-tron kuhn-fig-yuh-rey-shuhn]
Back
Electron Configuration
The specific arrangement and distribution of electrons within the orbitals of an atom or molecule, dictating its chemical behavior.
Example: This diagram shows how electrons are arranged in specific energy levels, or shells, around an atom's nucleus, which defines the element's electron configuration.
3.
FLASHCARD QUESTION
Front
Group Noun
[groop]
Back
Group
A vertical column in the periodic table where elements share similar chemical properties due to having the same valence electrons.
Example: This diagram of the periodic table shows that a 'Group' is a vertical column of elements, as indicated by the downward-pointing arrows.
4.
FLASHCARD QUESTION
Front
Period Noun
[peer-ee-uhd]
Back
Period
A horizontal row in the periodic table where elements have the same number of electron shells or principal energy levels.
Example: A period is a horizontal row of elements in the periodic table, as indicated by the label 'PERIODS' and the numbers 1 through 7.
5.
FLASHCARD QUESTION
Front
Electron-Dot Structure Noun
[ih-lek-tron dot struhk-cher]
Back
Electron-Dot Structure
A diagram that uses dots to represent the valence electrons of an atom around the element's chemical symbol.
Example: This chart shows electron-dot structures for several elements, arranged by their group on the periodic table. The number of dots (valence electrons) matches the group number.
6.
FLASHCARD QUESTION
Front
s-Block Elements Noun
[es-blok el-uh-muhnts]
Back
s-Block Elements
The elements in Groups 1 and 2 of the periodic table, characterized by having their highest-energy electron in an s orbital.
Example: This diagram shows the periodic table and highlights the s-block elements, which are found in the first two columns (Groups 1 and 2) and Helium.
7.
FLASHCARD QUESTION
Front
p-Block Elements Noun
[pee-blok el-uh-muhnts]
Back
p-Block Elements
The elements in Groups 13-18 of the periodic table, where the highest-energy electron occupies a p orbital.
Example: This periodic table diagram uses color-coding to highlight the p-block elements (in yellow), showing their specific location in groups 13 through 18.
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