" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
#protones= p
# neutrones= 20
el #de masa = #protones + # neutrones
2p = p + 20
2p - p= 20
p =20
reemplazando: #masa=2p =2x20 = 40