Is Oxygen a molecule or alloy?

Is oxygen, the chemical element with symbol O and atomic number 8. Its name derives from the Greek roots ὀξύς and -γόνος, because at the time of naming, it, mistakenly thought that all acids required oxygen in their composition a member of the class single-molecule substance (a substance that consists of only one type of molecule, such as the periodic elements or water) or the class alloy (homogeneous mixture of two or more elements, at least one of which is a metal, and where the resulting material has metallic properties)?

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Show reasoning Reasoning

I followed this chain of reasoning:

By calculation (generator: ["in_group@trueknowledge.com"]) I know that:
single-molecule substance is in the group single-molecule substance and alloy

alloy is in the group single-molecule substance and alloy

By calculation (generator: ["now@trueknowledge.com"]) I know that:
The current time is June 20th 2013, 07:36:13

I know from locally stored knowledge that:
Fact 1: Oxygen is a periodic element ([fact: ["120165243@trueknowledge.com"]])

By calculation (generator: ["permanent@trueknowledge.com"]) I know that:
Fact 1 is true for all time

I know from locally stored knowledge that:
periodic element is a subclass of single-molecule substance ([fact: ["123985548@trueknowledge.com"]])

permanent applies to periodic element ([fact: ["120107253@trueknowledge.com"]])

By calculation (generator: ["iaif1@trueknowledge.com"]) I know that:
Fact 2: Oxygen is a single-molecule substance

Fact 2 is true for all time

By calculation (generator: ["timeperiodtopoint@trueknowledge.com"]) I know that:
Fact 2 is true at June 20th 2013, 07:36:13

I used the following facts to provide this answer:

Oxygen is a periodic element

agree disagree edit

periodic element is a subclass of single-molecule substance

agree disagree edit

periodic element is permanent

agree disagree edit