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单词
valence electron
释义
WordReference Random House Unabridged Dictionary of American English © 2024
va
′
lence elec′tron,
[
Chem.
]
Chemistry
an electron of an atom, located in the outermost shell (
va
′
lence shell′
) of the atom, that can be transferred to or shared with another atom.
1925–30
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food and agriculture organization
food and drug administration
food bank
food chain
food combining
food court
food fish
food-gathering
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food group
foodie
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foodlessness
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food of the gods
food poisoning
food processing
food processor
food pyramid
food science
food service
food stamp
foodstuff
food vacuole
food vessel
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更新时间:2025/10/14 14:51:58