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Old Oct 1st 2008, 07:39 PM   #1
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Chemistry

Could someone answer these? I want to make sure I have the right Idea. thanks

1) How many electrons are there in a dozen Na+1 ions?

2) How many neutrons are there in three BeF2 molecules?

3) How many Hydrogen atoms are there in 5 NH3 molecules?
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Old Oct 2nd 2008, 02:48 AM   #2
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Originally Posted by Morgan82 View Post
Could someone answer these? I want to make sure I have the right Idea. thanks

1) How many electrons are there in a dozen Na+1 ions?

2) How many neutrons are there in three BeF2 molecules?

3) How many Hydrogen atoms are there in 5 NH3 molecules?
1. 10 electrons
2. 25 neutrons
3. 15 H atoms

Tell me if anything wrong
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