Periodic Table Basics
Flashcard
•
Chemistry
•
12th Grade
•
Practice Problem
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Medium
Bethany Pearson
Used 2+ times
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17 questions
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1.
FLASHCARD QUESTION
Front
What are periodic groups?
Back
Periodic groups are columns in the periodic table that classify elements with similar chemical properties.
2.
FLASHCARD QUESTION
Front
What are periods in the periodic table?
Back
Periods are horizontal rows in the periodic table where elements are arranged in order of increasing atomic number.
3.
FLASHCARD QUESTION
Front
What are periodic trends?
Back
Periodic trends are patterns in the periodic table that show the variation of certain characteristics of elements, such as electronegativity, ionization energy, and atomic radius.
4.
FLASHCARD QUESTION
Front
Who was Mendeleev?
Back
Dmitri Mendeleev was a Russian chemist who created one of the first versions of the periodic table by atomic mass and he predicted the properties of undiscovered elements.
5.
FLASHCARD QUESTION
Front
Who was Mosely?
Back
Henry Moseley was an English physicist who redefined the periodic table by arranging elements in order of increasing atomic number, which resolved inconsistencies in Mendeleev's arrangement.
6.
FLASHCARD QUESTION
Front
What is atomic number?
Back
The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity and its position in the periodic table.
7.
FLASHCARD QUESTION
Front
What is electronegativity?
Back
Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It generally increases across a period and decreases down a group in the periodic table.
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