What is an electron?
10/18: Finding PEN Scavenger Hunt p8-11

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Science
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8th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
An electron is a subatomic particle with a negative charge that orbits the nucleus of an atom.
2.
FLASHCARD QUESTION
Front
What is the atomic number of Molybdenum?
Back
The atomic number of Molybdenum is 42, which indicates it has 42 protons.
3.
FLASHCARD QUESTION
Front
What does a coefficient represent in a chemical equation?
Back
A coefficient is a number placed in front of a chemical symbol or formula that indicates the number of molecules involved in the reaction.
4.
FLASHCARD QUESTION
Front
What is the Periodic Table?
Back
The Periodic Table is a chart that organizes all known chemical elements based on their atomic number, electron configuration, and recurring chemical properties.
5.
FLASHCARD QUESTION
Front
What is the role of neutrons in an atom?
Back
Neutrons are neutral particles found in the nucleus of an atom that contribute to the atomic mass and stability of the nucleus.
6.
FLASHCARD QUESTION
Front
How do you find the number of neutrons in an atom?
Back
To find the number of neutrons, subtract the atomic number (number of protons) from the atomic mass (rounded to the nearest whole number).
7.
FLASHCARD QUESTION
Front
What is the difference between an atom and a molecule?
Back
An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.
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