The electron configuration for an element is 1s2 2s2 2p6 3s2 3p6. What is the atomic number of the element? * A. 3
B. 11
C. 18
D. 22

It shows that the experiment is designed properly.

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

I’m really not sure what’s the answer. sorry