Dear Sir/mam,
I am glad that I am a subscriber of tooperlearning but I am facing a problem in learning the valancies or symbols of the elements.
I would be highly obliged if you can help me out of this by giving me a suggestion as to how can I learn it.
Thanking you

Asked by deeksha_pareek | 6th Nov, 2014, 11:28: PM

Expert Answer:

Please write and memorise the chart:

Answered by Prachi Sawant | 10th Nov, 2014, 10:49: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.