What are valence electrons?
Chem A Unit 3 Test Review- Cross 2024

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•
Chemistry
•
10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.
2.
FLASHCARD QUESTION
Front
Which element has the least number of valence electrons: Rb, Mg, Ar, or Ga?
Back
Rb (Rubidium) has 1 valence electron.
3.
FLASHCARD QUESTION
Front
How many electrons can each orbital hold?
Back
Each orbital can hold a maximum of 2 electrons.
4.
FLASHCARD QUESTION
Front
What is the sublevel that comes after 4s?
Back
The sublevel that comes after 4s is 3d.
5.
FLASHCARD QUESTION
Front
What is a chemical change?
Back
A chemical change is a process where substances combine or break apart to form new substances, such as reacting hydrogen and oxygen to make water.
6.
FLASHCARD QUESTION
Front
Give an example of a physical change.
Back
Grinding pepper is an example of a physical change.
7.
FLASHCARD QUESTION
Front
What is the definition of volume?
Back
Volume is the amount of space that a substance or object occupies.
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