Chapter Three, Lesson Two: Organizing the Elements Flashcards
1
Q
atomic mass
A
The atomic mass of an element is the average mass of all the isotopes of that element.
2
Q
periodic table
A
A periodic table is an arrangement of elements showing the repeating pattern of their properties.
3
Q
chemical symbol
A
Often, an element’s chemical symbol is an abbreviation of the element’s name in English or Latin.
4
Q
periods
A
The periodic table is arranged in rows called periods.
5
Q
group
A
The elements in a column form a group.
