which of the following is the correct valence dot model for tin, sn?
which of the following is the correct valence dot model for tin, sn?
Answer
Answer:
B. •Sn:•
Explanation:
Step1: Determine valence electrons of Sn
Tin (Sn) is in group 14 of the periodic table. Elements in group 14 have 4 valence electrons.
Step2: Draw the valence - dot model
In a valence - dot model, we represent the element symbol and place dots around it to represent the valence electrons. For Sn with 4 valence electrons, we place 2 dots on one side and 1 dot on each of the other two sides. So the correct valence - dot model is •Sn:•.