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#Post#: 2483--------------------------------------------------
Daily question-142
DIR By: Shiva
Date: April 16, 2013, 5:06 am
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Okay guys, this is to test our periodic table knowledge. Please
try to answer without referring periodic table.
The element with atomic number 20. What element it is and which
period and group it belongs to?
#Post#: 2484--------------------------------------------------
Re: Daily question-142
DIR By: Chemist@
Date: April 16, 2013, 6:19 am
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Ca, II group, 4th period. I practiced this a lot. Almost learned
it completely, only the lanthanides and actinides I didn't.
#Post#: 2486--------------------------------------------------
Re: Daily question-142
DIR By: Sobia Sarwar
Date: April 16, 2013, 6:33 am
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Properties of lanthanides are almost similar to that of
calcium...
#Post#: 2490--------------------------------------------------
Re: Daily question-142
DIR By: Shiva
Date: April 16, 2013, 1:16 pm
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Great! Calcium is an interesting element. It is bit expensive
though. The cost is almost around 1/6 th of Silver. I will buy
some really soon and shoot some videos with it hehe :)
Shiva
#Post#: 2495--------------------------------------------------
Re: Daily question-142
DIR By: Sobia Sarwar
Date: April 17, 2013, 6:26 am
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yah sure shiva you must try it
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