Question

Calculate the effective nuclear charge experienced by 3d electron of iron (z=56)

Answer 1

Explanation:

a) To output audio - Speaker

b) To enter textual data - Keyboard

c) To make hard copy of a text file - Printer

d) To display the data or information - Monitor

e) To enter audio-based command - Mic

f) To build 3D models - 3D Printer

g) To assist a visually-impaired individual in entering data - Braille keyboards