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3.1 Atoms and elements
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卡片总数: 5 张•内容版本: v4•公开卡包•更新时间: 8/1/2026
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#1
正面 (问题)
What are atoms?
背面 (解答)
Atoms are the smallest particles that we cannot break down by chemical means. They are mostly empty space. Each consist of a nucleus and a cloud of particles called electrons.
#2
正面 (问题)
What is an element?
背面 (解答)
An element contains only one type of atom.
#3
正面 (问题)
What does the periodic table tell you?
背面 (解答)
Gives the names and symbols of elements The columns and rows give us clues
#4
正面 (问题)
What are the rows called?
背面 (解答)
The rows are called periods
#5
正面 (问题)
Same column
背面 (解答)
The elements in the same column form families or groups with similar properties.