Which of the above electron dot structures is wrong? Be

B

Al

H

Ne

Al

Explanation:

Aluminum (Al) is in the same group as Boron (B) so it should have three electrons or dots around it.

Hope that helps.

Structre of Al is wrong

Means Al is right answer of the above question

Explanation:

Because valence shell of aluminum contains three electron not 5 elctrons

Correct structure of Al is given

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.