3 years ago

Can someone please help me with this ASAP, this is due today, please please help me with this.

Chemistry

1 answer:

hichkok12 [17]3 years ago

5 0

Answer:

this is fairly simple if you have a periodic table with you.

Explanation:

atomic number 17 is Cl mass numer is 35.45 for protons neutron and electron you can just look that up on google. atomic number is where it is at on the periodic table and the mass number is in the little square at the bottom.

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