Valence Electrons
Flashcard
•
Science
•
6th - 8th Grade
•
Hard
Barbara White
FREE Resource
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19 questions
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1.
FLASHCARD QUESTION
Front
Valence Electrons Noun
[vay-luhns ih-lek-trons]
Back
Valence Electrons
The electrons in the outermost energy level of an atom that are involved in chemical reactions and determine reactivity.
2.
FLASHCARD QUESTION
Front
Atom Noun
[at-uhm]
Back
Atom
The smallest unit of matter that retains all of the chemical properties of a particular chemical element.
3.
FLASHCARD QUESTION
Front
Nucleus Noun
[noo-klee-uhs]
Back
Nucleus
The positively charged central core of an atom, which consists of protons and neutrons and contains most of its mass.
4.
FLASHCARD QUESTION
Front
Energy Level Noun
[en-er-jee lev-uhl]
Back
Energy Level
A fixed region or shell around an atom's nucleus where electrons with a specific amount of energy are found.
5.
FLASHCARD QUESTION
Front
Reactivity Noun
[ree-ak-tiv-i-tee]
Back
Reactivity
The tendency of an atom to participate in chemical reactions, which is largely determined by its number of valence electrons.
6.
FLASHCARD QUESTION
Front
Electron Dot Diagram Noun
[ih-lek-tron dot dahy-uh-gram]
Back
Electron Dot Diagram
A diagram representing an atom's valence electrons as dots surrounding the element's chemical symbol; also called a Lewis Dot Structure.
7.
FLASHCARD QUESTION
Front
Bohr Diagram Noun
[bohr dahy-uh-gram]
Back
Bohr Diagram
A simplified atomic model that depicts electrons orbiting the nucleus in specific, fixed energy levels or shells.
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