'''''45 nuetrons''''' who ever asked this shame on you a 13 year old answered your question jk :)
Oxygen=8 Bromine=45 Helium=2 Argon=22 Manganese=30 Silicone=14
The atomic mass is 79.90 and it has 35 protons. Take the atomic mass and subtract it from this number and you get 44.90=45 nuetrons approximately.
The anion form of bromine, bromide, has eight valence electrons. Bromine normally has seven valence electrons, but gains to to form bromide.
Looking at a periodic table, you see Al is number 13. It has 13 protons in the nucleus,so to have a total mass number of 24, it must have 11 nuetrons. Mass number = # protons + # nuetrons
since there are 22 protons there has to be 22 nuetrons since there are 22 protons there has to be 22 nuetrons
im eleven and i know the answer the answer is 18 nuetrons
there are 16 nuetrons in phosphorus atom
there are 12 nuetrons in an atom of magnesium
protons and nuetrons are equal to no. of electrons present in atom
26 nuetrons, 22 electrons, and 22 protons
it however has 15 protons , 15 electrons , and 16 nuetrons
13