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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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fioravme09 fioravme09
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11 years ago
Hello.

I am doing a Chemistry worksheet and I have all the electrons protons and neutrons but I dont know how to find the atomic mass and atomic number by using those.

Also after I get all that stuff in how do I find what element it is and what charge it has and all that stuff.

Thanks.
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#1
11 years ago
Atomic mass is the number of protons and neutrons added together.
Atomic number is the number of protons.
Find the element by looking for the element on the periodic table/on the internet with the same atomic number.
The charge is the number of protons - the number of electrons.
All that stuff? You'll have to be more precise.
wrote...
#2
11 years ago
The atomic number is the number of protons
The mass number is the number of protons and neutrons
Look on a periodic table, the elements are listed by their atomic number
For example Carbon is #6 and it has 6 protons
The Atomic mass is the decimal number under the symbol on the periodic table
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