Hey :)
The answer is B) Nitrogen, which has an electronegativity of 3.04
Hope this helps!
Explanation:
elctronic configuration of manganese
Mn=1s²2s²2p⁶3s²3p⁶4s²3d⁵
ground state
Mn=Ar3d⁵4s²
note that Ar is argon
Answer:
concave lens
Explanation:
it's concave lens because it diverges the ray/beam of light.