Help me on this!!
Fill in the Blank
Please briefly explain ....
Thanks~
[1] In the Periodic Table, the atomic _____ are not whole numbers, because all the mass of ______ are averaged.
[2] The number of protons in the nucleus of I-127 (an isotopes of Iodine) is ______, and the number of nucleon is ______.
2007-04-27 21:53:00 · 3 answers · asked by Nickname 1 in Science & Mathematics ➔ Physics
1) Masses, Isotopes
2) 53, 127
2007-04-27 22:00:26 · answer #1 · answered by ag_iitkgp 7 · 1⤊ 0⤋
[1] In the Periodic Table, the atomic _masses_ are not whole numbers, because all the mass of _an element_ are averaged. i thnk...
w8....are you trying to cheat?? not going to answer the next.. :D sori...
[2] The number of protons in the nucleus of I-127 (an isotopes of Iodine) is ______, and the number of nucleon is ______.
2007-04-27 22:05:34 · answer #2 · answered by gatsby101 2 · 1⤊ 0⤋
To find electrons first look at the charge. If it's charge is 0 then it has the number of protons and electrons are the same. If the charge is postive there will be more protons and vise versa for a negative charge. To find neutrons look at the mass. The number of protons and neutrons add up to the elements mass.
2016-05-20 22:13:13 · answer #3 · answered by christine 3 · 0⤊ 0⤋