Question

Difference between: nucleus and nucleons,valence shell and penultimate shell?

Answer 1

Nucleus -- It is positively charged core of atom which is surrounded by cloud if negatively charged particles called electron .

Nucleons - They are particle which core consist of ,namely protons and neutrons.

Valence shell- The outermost shell which contains Valence electron is called Valence shell.
Penultimate shell- It is shell which is just before valence shell .

Answer 2

Answer:

Heya mate... Here is your answer...

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1] Difference between Nucleus and Nucleons :-

Nucleus :

The nucleus is the positively charged core of an atom, which is surrounded by a cloud of negatively charged electrons.

Nucleons :

Nucleons are particles that the core of an atom consists of, namely positively charged protons and neutral neutrons. That is, the nucleus is made up of nucleons.

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2] Difference between Valence shell and Penultimate shell :-

Valence shell :

Valence shell is the last shell of the atom containing valence electrons. This shell is also known as Ultimate shell.

Penultimate shell :

Penultimate shell is the shell just before the valence or the ultimate shell that is, the second last shell of the atom.

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