francium , in the Periodic table the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. making helium is the smallest element, and francium the largest.
A is correct hope this helps
Convert temperature to Kelvin
Convert vol to L
Apply Charles law
- V1T_2=V2T_1
- 0.4(400)=498V_2
- 160=498V_2
- V_2=0.32L=320mL
Answer:
I think it's nitrogen I'm not really sure..
3 km/h
formula for momentum = mass x velocity
