85 The task of chemistry number 85

85 The task of chemistry number 85

Define the following description: a) an alkali metal, which is 4s1-valency electron; b) noble gas, comprising the external energy level of the electrons is less than eight; c) elements with one unpaired electron 2p; d) the lightest element, the outer energy level of the electrons which contains rhrurz.

Additional information:

After payment You get a ready-made solution. The decision is made in the format WORD (a racshirenie nomer_zadachi.doc). Archived in archiver rar archive. The solution passed repeatedly in the leading universities of the country, all the mistakes and shortcomings corrected.

I would be very grateful if you leave your positive feedback after the purchase.
Thank you for choosing us!