L S.

asked • 07/11/15

How do I calculate the number of protons and neutrons for a fictitious element when only given the atomic weight?

I have a list of fictitious elements to put into a periodic table (of my own design).  I have the atomic weight, physical state (gas, diatomic gas, hard brittle solid, ,hard w/high melting point, soft w/low melting point, liquid w/low boiling point, diatomic volatile liquid, diatomic volatile solid, soft low melting solid), the electrical conductivity (high, very high, low, very low, & semiconductor), and reactivity (very high, high, medium, medium low, very low).
I am having a difficult time choosing how to organize into periods and groups.

1 Expert Answer


Evan G. answered • 07/13/15

5 (1)

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