Write the ground-state electron configurations of the following ions. (a) li+ (b) n3− (c) in3+ (use the noble gas core electron configuration in your answer.) (d) tl+ (use the noble gas core electron configuration in your answer.)

Li+  [He]

N³-  [Ne]

In³+  [Kr] 4d10

Tl+  [Xe] 4f14 5d10 6S2

a) Li⁺ = 1s²

b) N³⁺ = 1s²2s²2p⁶

c) In³⁺ = [Kr] 4d¹⁰

d) TI⁺ = [Xe] 4f¹⁴5d¹⁰6s²

Explanation:

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

i wanna say it’s between b and d, leaning more towards b.