Question

Select all that apply.
Elements listed in vertical columns of the periodic table:
)have similar chemical properties
)increase in number of protons in descending order
)are metals
)can combine with each other chemically

Answer 1

A) Have similar chemical properties.

Answer 2

A) Have similar chemical properties

and also

B) increase in number of protons in descending order

I have gotten these answers checked, they are correct.