Complete the passage. k (potassium) belongs to group ia of the periodic table, and has 1 valence electron. br (bromine) belongs to viia, and has how many valence electrons.

Bromine (Br) known to be part of halogens have 7 valance electrons. To identify how many valence electron using the group number, you can find VII. It is a roman numeral of seven. It means that elements belong to VIIA have 7 electron, same with potassium (K) has 1 valence electron so that's why it belongs to 1A. The valence electron of Br are found in 4s and 4p.

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.