Question

a)Write the name of element. Na
b)Number of electrons present in the element. c)Tell name of second shell and how many electrons in them
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Answer 1

Answer:

a ) sodium

b) 20 elements

c) So, sodium's 11 electrons are arranged this way: 2 electrons in the first "shell", 8 electrons in the second "shell"; and 1 electron (the valence electron) in the third "shell". We write this as 2.8. 1. The last number is how we know the number of valence electrons.

Answer 2

a) Na: Sodium

b) 11 electrons

c) L-shell = 8 electrons.