Thursday
July 30, 2015

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.

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