HELP ME WITH THIS AND DON'T GET ME WRONG IF YOU DON'T KNOW DON'T ANSWER AND DON'T SAY ''I THINK ITS THE RIGHT ANSWER BUT I'M NOT SURE''
Which symbolizes a molecule of a compound?

1. H2O2

2. Si

3. F2

4. Ar2

Group of answer choices

2 only

1, 3 and 4

1 only

3 and 4