What happens to the number of valence electrons across a period in the periodic table?
Midterm 24/25

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Science
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
The number of valence electrons increases from left to right.
2.
FLASHCARD QUESTION
Front
What is an appropriate way to dress in the lab?
Back
Pulling long hair back is an appropriate way to dress in the lab.
3.
FLASHCARD QUESTION
Front
Can I perform my own unauthorized experiments with lab materials?
Back
Never.
4.
FLASHCARD QUESTION
Front
What does the electrical symbol represent in the lab?
Back
It indicates the presence of electrical equipment and warns about potential dangers.
5.
FLASHCARD QUESTION
Front
What is a substance made up of only one kind of atom called?
Back
Element.
6.
FLASHCARD QUESTION
Front
What is the definition of a compound?
Back
A substance formed when two or more elements are chemically bonded together.
7.
FLASHCARD QUESTION
Front
What is a homogeneous mixture?
Back
A mixture that has a uniform composition throughout.
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