A= mass number = number of protons and neutrons in the nucleus
Z= number of electrons = number of protons
Given, number of neutrons= 30
Z = A - 30 = 70 - 30 = 40
Z = 40
I hope I was helpful
1. Atoms are mostly empty space
2. Atoms have a concentration of positive matter somewhere in them
3. The concentration of this positive matter is very small
The app socratic will help you to get the answer
The best name for NO3 is Nitrogen Trioxide, it is very aggressive and corrosive. Hope this helped! Brainliest is always appreciated!
Your protons are correct but it’s 28 neutrons not 27!
