a) Sodium w/ mass of 24
b) Chlorine w/ mass of 37
c) Magnesium w/ 12 neutrons
d) Bromine w/ 45 neutrons
2007-09-08 20:31:31 · 4 answers · asked by Anonymous in Society & Culture ➔ Religion & Spirituality
Strange place for this question.
First, in line with this section, God made them all.
Second, as a rule of thumb, the mass is a number of neutrons + protons.
number of electrons = number of protons
some of your figures could be incorrect.
Do the maths.
2007-09-08 20:49:10 · answer #1 · answered by jemhasb 7 · 0⤊ 0⤋
i've no idea why you're asking this here. you really should try to work it out for yourself, it's not that hard. this is a good online resource:
http://www.webelements.org/
the symbol you just have to remember, sodium for example is Na.
the mass is the sum of the number of protons and neutrons. sodium has an atomic number of 11, which means it has 11 protons, and when present as a neutral atom, 11 electrons. its mass is given as 24, so this isotope has 24 - 11 = 13 neutrons.
the other examples are similar.
2007-09-08 20:40:32 · answer #2 · answered by vorenhutz 7 · 0⤊ 0⤋
I have spend some time trying to map out what really you what to get from this question. Some where in this list lies an intelligent question, can it be further made simple
2007-09-08 20:39:24 · answer #3 · answered by spiderheart 3 · 0⤊ 0⤋
e) Pointless question w/ 2 points for me
Try the homework section, kiddo.
2007-09-08 20:34:25 · answer #4 · answered by Satan's Own™ 5 · 1⤊ 0⤋