LBr is ionic compound because k for potassium is metal which means it’s on the left side of the periodic table and Br which is bromine is a non metal which means is on the right side of the periodic table.
In Conclusion when a non metal and metal come together the are called ionic compound
Answer:
all of them have seven valence electron
Answer:
6 so sorry of that wrong I tryed
I'm not sure how to explain it on here without being able to draw but basically for every valence neutron you put 1 dot on each side of the element symbol like and once you go all the way around you start adding 2 dots and the maximum you can have is 2 dots on each side, hope this helped