The fact that the Marshall Plan financially aided European countries to build up their governments and economies after WWll worsened relations between the USA and the USSR because those were countries that the Soviet Union wanted to dominate, but if those countries were stable enough to govern themselves, then they wouldn't be tempted to join the USSR.
The elemental classification for oxygen would be non-metal. It is located in period number 2 and group number 16. It has an atomic number of 8. At room temperature, it exists as a gas. Hope this answers the question. Have a nice day.
