Ne, Ar, and Kr have which properties in common? O They are gases at STP. unreactive, and are generally monatomic.
O They are gases at STP, reactive, and are generally diatomic.
O They are gases at STP. unreactive, and are generally diatomic.
O They are gases at STP. reactive, and are generally monatomic.

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?

Why is the bottom layer of a trophic pyrimid the