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Consider the group 1A elements sodium (period 3), potassium (period 4), and rubidium (period 5). What would you predict about the ionization energies of these elements?
answered
Nov 29, 2017
Chemistry
high-school
5
votes
213k
views
Which was a cause of World War I? A. Political revolutions in Europe left nations unstable. B. The Second Industrial Revolution led to international rivalries. C. Europe’s system of military alliances
answered
Oct 25, 2017
History
high-school
3
votes
230k
views
After the war, Ottoman lands were divided into
answered
Apr 24, 2017
History
high-school
4
votes
64.0k
views
What is the value of the 8 in 389,422
answered
Feb 11, 2017
Mathematics
middle-school
7
votes
26.9k
views
Which Russian tsar travelled around Europe in disguise so he could see for himself how western technology worked? A. Alexander I B. Peter the Great C. Ivan the Great D. Nicholas I
answered
Jul 4, 2016
History
high-school
6
votes
10.6k
views
Estimate using a rate per 100 of 74% of 315. 89% of 195
answered
Jun 11, 2016
Mathematics
middle-school
6
votes
144k
views
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