What can be found on the periodic table? A. The date an element was discovered
B. The number of isotopes an element has
C. The number of protons an element has
D. The names of molecules formed by the element

i don,t know so just answer mine

b) nuclear ive learned that in a pedtrodic table

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.