Which of the above electron dot diagrams is wrong and why?

Oxygen, it's supposed to have six valenge electrons.

Explanation:

Count the dots on the oxygen atom, you'll see seven, but there's supposed to be six.

here is ur answer...

Explanation:4)Oxygen O because it is supposed to have 6 valence electrons. .

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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