Meaning of 共价键
共价键 means covalent bond; chemical bond formed by the sharing of electron pairs between atoms. Pronounced gòng jià jiàn.
- covalent bond; chemical bond formed by the sharing of electron pairs between atoms
Definitions & Examples
Shuǐ水
fēn分
zǐ子
zhōng中
de的
yǎng氧
yuán原
zǐ子
hé和
qīng氢
yuán原
zǐ子
tōng通
guò过
gòng共
jià价
jiàn键
jié结
hé合
zài在
yī一
qǐ起
。
In water molecules, oxygen and hydrogen atoms are bonded together by covalent bonds.
Tàn碳
yuán原
zǐ子
zuì最
wài外
céng层
yǒu有
sì四
gè个
diàn电
zǐ子
，
kě可
yǐ以
xíng形
chéng成
sì四
gè个
wěn稳
dìng定
de的
gòng共
jià价
jiàn键
。
Carbon atoms have four electrons in their outermost shell and can form four stable covalent bonds.
Gòng共
jià价
jiàn键
de的
jiàn键
néng能
tōng通
cháng常
bǐ比
lí离
zǐ子
jiàn键
dà大
，
yīn因
cǐ此
gòng共
jià价
huà化
hé合
wù物
wǎng往
wǎng往
jù具
yǒu有
jiào较
gāo高
de的
róng熔
diǎn点
。
Covalent bonds usually have higher bond energy than ionic bonds, so covalent compounds often have higher melting points.