Periodic Table

Flashcard
•
Science
•
9th - 12th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the periodic table?
Back
A tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.
2.
FLASHCARD QUESTION
Front
What are groups in the periodic table?
Back
Vertical columns in the periodic table that group elements with similar chemical properties.
3.
FLASHCARD QUESTION
Front
What are periods in the periodic table?
Back
Horizontal rows in the periodic table that indicate the number of electron shells in the elements.
4.
FLASHCARD QUESTION
Front
What is an atomic number?
Back
The number of protons in the nucleus of an atom, which determines the element's identity.
5.
FLASHCARD QUESTION
Front
What are noble gases?
Back
Elements in group 18 of the periodic table, known for their lack of reactivity due to having a full valence shell.
6.
FLASHCARD QUESTION
Front
What is the significance of valence electrons?
Back
Electrons in the outermost shell of an atom that determine its chemical properties and reactivity.
7.
FLASHCARD QUESTION
Front
Who is Moseley and what did he contribute to the periodic table?
Back
Henry Moseley arranged the periodic table by increasing atomic number, leading to the modern periodic law.
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