3) Write the nuclear symbol and hyphen notetion for each of the following isotopes:
a. mass number of 28 and atomic number of 14
b. 26 protons and 30 neutrons
c. 56 electrons and 82 neutrons
2006-10-05 14:28:51 · 3 answers · asked by Lion 1 in Science & Mathematics ➔ Chemistry
Si-28
Fe-56
Ba-138
2006-10-05 14:37:09 · answer #1 · answered by Alan Turing 5 · 0⤊ 0⤋
Don't care about 10 pt.s not like I can buy something with them.
Anyway, here are the rules:
Number of protons=number of electrons.
Total of protons and neutrons = mass number.
protons = atomic number.
Notation format is mass number on top and behind symbol with atomic number below and behind.
Hyphen notation is symbol then a hyphen and the mass number.
The atomic number is how you find the symbol.
Thats everything you need to get the answer. And pass the test.
2006-10-05 21:41:21 · answer #2 · answered by Ren Hoek 5 · 0⤊ 0⤋
see above
2006-10-05 21:41:07 · answer #3 · answered by Rusty Shackleford 5 · 0⤊ 0⤋