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C2 - Atoms, elements, compounds
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片总数: 5 张•内容版本: v3•公开卡包•更新时间: 8/1/2026
卡片预览 (5 张)
#1
正面 (问题)
What is an element? [1]
背面 (解答)
Made up of only one type of atom
#2
正面 (问题)
What is a mixture? [1]
背面 (解答)
Two or more different atoms which are NOT chemically bound
#3
正面 (问题)
What is a compound? [1]
背面 (解答)
Two or more different atoms which ARE chemically bound.
#4
正面 (问题)
What is the atomic number? [1]
背面 (解答)
The number of electrons/protons there are in an atom.
#5
正面 (问题)
What is the atomic mass? [1]
背面 (解答)
Neutrons + Protons