Nannie Goettl
Monday, August 15, 2011
Need chemistry help plz?
all barium atoms have 56 protons. one isotopes of barium has 74 neutrons, and another isotopes has 81 neutrons. write the symbols for these two isotopes of barium?
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment