The term nuclear charge refers to the precise charge of the nucleus, which, in units of fundamental charge, is equal to the number of protons, Z. The term effective nuclear charge is used to mean the apparent charge that determines the radius of the outermost electron(s) in an atom. Which quantity below can be used to approximate the effective nuclear charge by accounting for shielding by the inner electrons?

Select the correct answer below:

2Z

Z+ the number of shielding electrons

Z− the number of shielding electrons

the number of shielding electrons

The quantity that can be used to approximate the effective nuclear charge, making sure that the inner electrons is being accounted for is The number of shielding Electron.

Nuclear charge can be regarded as the precise charge of the nucleus. The effective charge can be defined and analysed by the use of Slater rule.This rule helps in using effective clear charge screening as well as shielding constant and this is dependent on orbital of the screening electrons.

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Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.