PLEASE HELP I AM FAILING SCIENCE Which element is the group 1 element with the highest ionization energy?

A. Li

B. Si

C. K

D. Ca

E. Fr

I already answered it once and I got it wrong. I chose Si.

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change. when the temperature in a room increases from 25°c to 33°c, changes from a solid to a liquid. in a lab, methane and nitrogen are cooled from -170°c to -200°c. the methane freezes and the nitrogen . when gold is heated to 2,856°c it changes from a liquid to a .

Which of these conditions most likely produces an unstable isotope?

What three things determine the shape and size of a puddle when water is poured out onto a surface