does russian have the most money in eastern europe as a country?

Yes. They have the most billionares too.

I think so the income gap is very large in Russia the rich is very rich the poor is very poor like China.

"Russia has 53 billionaires worth a total of $282 billion, according to the Forbes list of the richest people. In addition, the second-tier rich include 103,000 Russian millionaires who are collectively worth $670 billion, according to a study on the evolution of personal wealth in the former Soviet Union written by economists at the Center for Economic and Financial Research, a think tank here. (The World Bank says that in 2005, 15.8 percent of Russians lived below subsistence level.)

“There are hundreds of millionaires in Moscow — that is why we are all here,” said Nicole Marais, a sales and marketing representative for David Morris, the London jeweler. She was attending the fair for the first time in conjunction with the brand’s Russian distributor, the Soho Jewelry Group. “The women are all impeccably groomed and the men are all worth a fortune.”
http://www.nytimes.com/2007/11/29/fashion/29moscow.html

Russia has by far more money than any other Eastern European country. It is to Poland, the country with the second highest GDP in the region, as Italy is to Thailand. However, the large income disparity and the size of the country places the Russians in the lower-middle part of Eastern Europe, somewhat below Croatia and Poland.

Eastern Europe by Gross Domestic Product (PPP) - how rich the country is:

1. Russia
2. Poland
3. Ukraine
4. Czech Republic
5. Romania
6. Hungary
7. Slovakia
8. Belarus
9. Bulgaria
10. Serbia
11. Croatia
12. Lithuania
13. Slovenia
14. Latvia
15. Estonia
16. Bosnia
17. Albania
18. Macedonia
19. Moldova

Eastern Europe by GDP per capita - how rich the supposedly average person is:

1. Slovenia
2. Czech Republic
3. Estonia
4. Slovakia
5. Hungary
6. Lithuania
7. Latvia
8. Poland
9. Croatia
10. Russia
11. Romania
12. Bulgaria
13. Belarus
14. Serbia
15. Macedonia
16. Bosnia
17. Ukraine
18. Albania
19. Moldova

It is perhaps a bit of a stretch to compare Russia to China, because in principle the US would end up being there as well. The average Chinaman is poorer than the average Albanian, while the average Russian is three times as rich.