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:

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft