Chlorine has an atomic number of 17 and an atomic mass of 35. therefore, chlorine has electrons and neutrons.

The atomic mass is equivalent to the amount of neutrons and protons an element has. Chlorine has 35 neutrons since it's atomic mass is 35. Chlorine has 17 electrons, since the amount if electrons an element has is equivalent to it's atomic number that is contains.

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 .