16 replies to this topic

[Stone]

My brain is dead and I really dont understand Science, which I should. If any of you can help me with the following questions, id be in your debt

How do you find a:

Proton
Electron
Neutron

Based on the Atomic Number?/Other info given on a periodic table.

On a periodic table, can anybody explain what the Groups/Family's in the Coloumns and the Periods in the Rows are.

How to find Valence Electrons. How to find Oxidation Number and what it is.

Help is appreciated

[Freddy]

what year are you in high school?

well electrons float around the atom in cirles of 2,8,18,... this number is equal to the protons which is the chemical number the number of neutrons is the chemical mass minus the chemical number

if I am wrong then please correct me I did this a month ago or so

[Stone]

what year are you in high school?

well electrons float around the atom in cirles of 2,8,18,... this number is equal to the protons which is the chemical number the number of neutrons is the chemical mass minus the chemical number

if I am wrong then please correct me I did this a month ago or so

Im in Middle School, and really behind xD 8th grade, XD

Thanks for the information you gave, Now to see if anybody else agrees so I can use it

[ShadowLink64]

You have a test tomorrow, and you have all of these questions? Better get studying.

The Atomic Number of an element tells you how many protons it has.

If you are given an atomic mass (to get the amount of neutrons):
Atomic Mass minus the atomic number (protons) give you the amount of neutrons since the atomic mass is the total protons + neutrons that the atom has.

As for electrons:

If you have a single atom, the electrons and the protons will be the same amount.

If you have an ion, the electrons WILL NOT be the same as protons because an ion will have either gained or lost electrons.

To find valence electrons, try and find a tutorial on the internet on the Bohr Model and of the electron valence levels (too tired to type it all up).

[Stone]

Whoa thank you so much

Now by any chance, you wouldnt happen to know what energy levels are? xD

OR by any chance...

know how based on given elements on a periodic table, "reaction tendency" or the number of electrons most likely to be gained or lost can be found? xD

Edited by Stone, 25 January 2006 - 09:05 PM.

[mom3ntum]

Wow, seems like someone hasn't been paying attention in class, huh
Well, for the reaction tendency:
Top -> Bottom = Not So Reactive -> More Reactive
Left -> Right = Reactive -> Not So Reactive

That is, if I remember properly. I haven't taken CHem for a while. Physics all the way

[Stone]

xD well I was out for a week, so I missed a lot

Thank you for that Helps a lot too

Now after reviewing like 50 web pages and books im prepared Thank you all for your help Now for History Paper, the sleep clock slowly goes down.. 5 hours, 4 hours, 3 hours of sleep tonight

[mom3ntum]

Man, 8th grade. How can you get so little sleep in 8th grade?! I used to get at least 10 hours a night

[supatyson]

Im in Year 11 this year in Australia and last year in Year 10 I only averaged about 5 minutes of homework a night. Just pay attention in class, do u work and its so much better, more free time.

[Stone]

Im in Year 11 this year in Australia and last year in Year 10 I only averaged about 5 minutes of homework a night. Just pay attention in class, do u work and its so much better, more free time.

XD I think my school might be a tad different from yours I can understand little amounts of homework, but 5 minutes? Wouldnt that be like, just lookin at your classword briefly? *edit* sorry, that sentance might have sounded rude, I meant it in a fun kind happy sort of way

Free time, xD Sports takes up time And thats kind of free time? 0-0


10 hours, I havent gotten that much sleep since second grade, I guesse im a night and mid-day person, getting up in the morning is hell.

Edited by Stone, 25 January 2006 - 10:27 PM.

[japser_be]

I study sciences in belgium
and I can answer all the basic things
gl with your examn

[Stone]

I study sciences in belgium
and I can answer all the basic things
gl with your examn

thank you Belgium Science? That sounds cool, never been in Belgium, XD

Chugga Chugga Chugga Chugga, CHOO CHOO, 20 more minutes Then sleep One more paper

How do you all keep going? xD

[Rush]

coffee!?!?! bleh! you should cut your wrist and pour calamansi juice into the wound to stay awake even when a magical bird poops on you...from a myth(Ibong Adarna)

nope....its actullay sugar

[ShadowLink64]

actually.. the atomic mass is usually used to find the number of neutrons..

If you are given an atomic mass (to get the amount of neutrons):

:blink:

[Stone]

Thank you all for your help, I took the test today, it didnt go too well but better than it could have been, xD

[ShadowLink64]

SL.. I'm in like a high dazed state of confusion where I don't make sense but I ramble endlessly.. forgive my insolence.

Forgiven.

And no problem Stone.

[Johnbon]

good luck on your results