Periodic Table - Forum - Chemistry Tools - Resources - Link to Us

Please help me answer this questions

Search by name or symbol:
FAQ | Search |  Register!Profile | Private Messages | Log in
 
Author Message
nastassja
Probably a bot.


Joined: 03 Mar 2007
Posts: 1

PostPosted: Sat Mar 03, 2007 9:39 pm    Post subject: Please help me answer this questions Reply with quote

1. how are atomic number and the number of protons related to each other?

2. how do the number of protons, number of neutrons, and th mass number relate to each other?

3. What is one thing that detemines the identity of an atom (that is, whether it is an oxygen atom or a carbon atom, etc)?

Please help me answer this questions, Thank you so much
Back to top
RobJim
Senior Member


Joined: 13 Feb 2005
Posts: 320
Location: Los Angeles, CA

PostPosted: Thu Mar 08, 2007 8:02 am    Post subject: Reply with quote

This is not a site to cut and paste homework questions for others to answer. If you showed more evidence that you tried I'd help.
Back to top
dr. dugmore
Junior Member


Joined: 03 Jun 2007
Posts: 4

PostPosted: Sun Jun 03, 2007 6:27 am    Post subject: Re: Please help me answer this questions Reply with quote

nastassja wrote:
1. how are atomic number and the number of protons related to each other?

2. how do the number of protons, number of neutrons, and th mass number relate to each other?

3. What is one thing that detemines the identity of an atom (that is, whether it is an oxygen atom or a carbon atom, etc)?

Please help me answer this questions, Thank you so much



For any element:

Number of Protons = Atomic Number

Number of Electrons = Number of Protons = Atomic Number

Number of Neutrons = Mass Number - Atomic Number

using krypton as an example:

Number of Protons = Atomic Number = 36

Number of Electrons = Number of Protons = Atomic Number = 36

Number of Neutrons = Mass Number - Atomic Number = 84 - 36 = 48
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Chemicool Forum -> Periodic Table of the Elements All times are GMT
Page 1 of 1