Which of these is a monatomic element?
a. f
b. kr
c. ne
d. rn

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

If two objects at different te,peraure are in contact with each other what happens to their temperature

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?