Question

What two metalloids have the same number of electron shells as iodine?
a. germanium and arsenic
b. antimony and tellurium
c. astatine and boron
d. boron and silicon
Which of the following lists the elements in order of increasing conductivity?
a. He, Te, Tl
b. Te, He, Tl
c. Tl, Te, He
d. Tl, He, Te
A chemist is looking at an electrically neutral atom that has three valence electrons. If she knows the element is a metalloid, which one (or ones) is it?
a. B
b. At
c. Sb and Te
d. Ge and As

Thanks for those who answer! I will fan and metal :3

Answer 1

I think 1 is B. I would double check to make sure. Conductivity trend is up and to the right so i would say C. and the last one, Metalliods are located in the p-block of the periodic table which is from C to Ne and down. So I would say D for the last one.

Answer 2

the "p-block" is from Boron to Neon and Down. I accidentally typed Carbon. my apologies