1pM 1p 2 60 1 pts 1 pts 1pts (1) How many protons and neutrons are there in the nucleus of an atom that has an atomic number of 39 and a mass number of 90? protons neutrons (2) What is the symbol for the element? element
1pM 1p 2 60 1 pts 1 pts 1pts (1) How many protons and neutrons are there in the nucleus of an atom that has an atomic number of 39 and a mass number of 90? protons neutrons (2) What is the symbol for the element? element
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Transcribed Image Text:1pM
1p 2
60
1 pts
1 pts
1pts
(1) How many protons and neutrons are there in the nucleus of an atom that has an atomic number of 39 and
a mass number of 90?
protons
neutrons
(2) What is the symbol for the element?
element
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