Review: Atomic Structure & Periodic Table
Flashcard
•
Science
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the atomic number?
Back
The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.
2.
FLASHCARD QUESTION
Front
What are metalloids?
Back
Metalloids are elements that have properties of both metals and nonmetals. They are found along the zig-zag line on the periodic table.
3.
FLASHCARD QUESTION
Front
What is the significance of the atomic mass?
Back
The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu). It reflects the number of protons and neutrons in the nucleus.
4.
FLASHCARD QUESTION
Front
What group do alkaline earth metals belong to?
Back
Alkaline earth metals belong to group 2 of the periodic table.
5.
FLASHCARD QUESTION
Front
What are halogens?
Back
Halogens are the elements found in group 17 of the periodic table, known for being highly reactive nonmetals.
6.
FLASHCARD QUESTION
Front
Where are noble gases located on the periodic table?
Back
Noble gases are located in group 18 of the periodic table and are known for their lack of reactivity.
7.
FLASHCARD QUESTION
Front
What is a Lewis Dot Structure?
Back
A Lewis Dot Structure is a diagram that represents the valence electrons of an atom, showing how they are arranged around the nucleus.
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