What is the mass mumber of an element?ps:Please answered in
What is the mass mumber of an element?ps:Please answered in English
I want the define of "mass mumber of an element"
I want the define of "mass mumber of an element"
赞 guangdechenl 幼苗
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the mass number of an element is used in chemistry, it ls the sum of the number of neutron and proton of an element
1年前
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