The core of the 40 calcium atom, the most common isotope is symbolized by ₂₀⁴⁰Ca.

Chemistry

1 answer:

wariber [46]3 years ago

6 0

1) 20 protons, 20 electrons, 20 neutrons and so 40 nucleons

2) 40 x 1,67 x 10^-27 = 6.68 x 10^-26

This is the core's mass and the atom mass at the same time because the elctron's mass isn't important ( like 1/1000 of the mass )

3) ₂₀⁴²Ca ₂₀⁴³Ca ₂₀⁴⁴Ca

Those are the three one's.

4) It forms a cation.

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