Nitrogen is a group 15 element. what does being in this group imply about the structure of the nirtrogen atom?

Being in the group 15 implies these facts about the structure of nigrogen:

Explanation:

The number of the group is related with the valence electron shell of the elements:  for the representative elements, the ones digit of the group number is equal to the number of valence electrons

This table shows that relation:

Group number       Ones digit          number of valence electrons

1                               1                              1

2                              2                             2

13                             3                             3

14                             4                             4

15                             5                            5

16                             6                            6

17                              7                            7

18                              8                            8

Then, you can conclude quickly that, being nitrogen in the group 15, it has 5 valence electrons.

Also, you can have a more detailed information about the structure of the nitrogen atom from the fact that it is a group 15 element, because, the valence shell of all the group 15 elements is represented by the general form ns² np³.

That form means:

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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