Homework Help: basic chem

Posted by Davis on Sunday, August 28, 2011 at 9:20pm.

1)an atom has a mass number of 27 and 14 neutrons. what is the atomic number of this atom?

2)The atomic number of fluorine is 9. What is the mass # of a fluorine atom with 8 neutrons?

basic chem - bobpursley, Sunday, August 28, 2011 at 9:46pm
the number of protons=massnumber-neutrons

the mass number=protons+neutrons

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