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Mrrafil [7]
3 years ago
12

PLS HELP

Chemistry
2 answers:
N76 [4]3 years ago
6 0

1. 22

2. False, the d subshell can only hold 6 electrons

3. 8 because the element is a noble gas

lianna [129]3 years ago
5 0

Answer:

Answer 1: there are 4 valence electrons in the Example A

Answer 2:  The d subshell can hold up 10 electron: True

Answer 3: The element argon has 8 valence electrons.

Explanation:

<em>Answer 1:</em> The example A has four shells, and in the forth shell, it holds a total of  2 + 2 = 4 , so it has  4  valence electrons.

<em>Answer 2:</em> As you can see in the image, the d subshell has 5 different areas where you likely find a pair of electrons. In each area you can find until 2 electrons, so 5 x 2 = 10 electrons can be hold up in the  d subshell.

<em>Answer 3</em>: Noble gases like argon have 8 valence electrons and its electron configuration is  [ N e ] 3 s 2 3 p 6  

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