Why do you think the transition metals are 10 columns wide?

The transition metals are 10 columns wide because they can hold no more than 10 electrons. This is why their width correlates with the number of electrons that are included in these metals. Transition metals include most commonly used metals, such as iron, copper, silver, and gold.

Woah that’s a lot to read xd i’ll try though. i’ll get back t you if. i know the andwer