Question

Which list of elements will behave similarly in a chemical reaction?

lithium (Li), boron (B), oxygen (O)
lithium (Li), sodium (Na) potassium (K)
sodium (Na), magnesium Mg), lithium (Li)
potassium (K), bromine (Br), krypton (Kr)

Answer 1

I got you. its lithium (Li), sodium (Na) potassium (K)

Step-by-step explanation:

They are all in the same group of the periodic table just look it up and look at group 1