Homework Help: Science

Posted by Jess D on Sunday, March 23, 2008 at 4:34am.

Hi i have a science exam on tuesday and really need some help to see if what im doing is right.

The question is - How many electrons, protons and neutrons are in the following: a) Br1-
b) Be2+
c) Ne
d) P1-
e) Fe

AND MY ANSWERS ARE:

a)35 electrons
35 protons
45 neutrons

b)4 electrons
4 protons
5 neutrons

c)10 electrons
10 protons
10 neutrons

d)15 electrons
15 protons
16 neutrons
i dont think this ones right ???

e)26 protons
26 electrons
30 neutrons
i dont think this ones right either???

cOULD YOU PLEASE GIVE ME SOME FEEDBACK uRGENTLUY!! plEASE.

Science - SraJMcGin, Sunday, March 23, 2008 at 9:31am
Thank you for using the Jiskha Homework Help Forum. Try the following:

1. http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TJN-44MWCT0-19&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=6653b8a43f0da3a1d27faa62c4cfe203

2. http://prola.aps.org/abstract/PR/v172/i5/p1381_1

3. (part II of #2): http://prola.aps.org/abstract/PR/v75/i3/p351_1
- Science - Jess D, Monday, March 24, 2008 at 2:27am
  hi i do not understand those websites could u explain it for me??

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