Answer:
20
Explanation:
number of protons+ number of neutrons= mass of atom
19+n=39
n=39-19=20
number of neutrons=20
I would say b
hope this helps
With email non-verbal communication is lost and your message must be carefully composed to avoid being MISINTERPRETED BY THE RECIPIENTS.
One has to be precised and go straight to the point when sending email messages. One's words should also be carefully chosen in order to pass across the right information without the possibility of the message been misinterpreted by the recipient.
Answer:
No
Explanation:
Divided up into an hourly rate, the earth rotates 15 degrees every hour (360/24). This number plays an important role in determining time zones. An important factor in determining time zones is the lines of latitude and longitude. Imaginary lines known as latitude and longitude divide the Earth.
European Union so it's C.