What is the atomic number of the element shown here? (It is not hydrogen, just fictional element)
- 4.
- 3.
- 7.
zoom77 asking:
i know that atomic number Z is up on the left
Community Comments (3)
M
Matas24 Posts: 7 21.06.2017 / 13:24
error in test
Z
zoom77 Posts: 6 22.06.2017 / 16:44
thank you
J
Jordi Posts: 198 14.06.2020 / 15:42
the atomic number is right as it is ,it is 3 in this picture.The atomic mass/neucleus number/mass number is 4 you have confused it guys.
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