Can I have someone to talk to it’s really important and I need advice..

What is the composition, in atom percent, of an alloy that consists of 4.5 wt% pb and 95.5 wt% sn? the atomic weights for pb and sn are 207.19 g/mol and 118.71 g/mol, respectively.(a) 2.6 at% pb and 97.4 at% sn(b) 7.6 at% pb and 92.4 at% sn(c)97.4 at% pb and 2.6 at% sn(d) 92.4 at% pb and 7.6 at% sn

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen