Assessment timer and count assessment items assessment started: undefined. item 1 unless otherwise instructed, you may use the periodic table in the chemistry: problems and solutions book for this question. which element is in the same group as magnesium (mg) ? sodium (na) uranium (u) tungsten (w) calcium (ca)

i believe the answer is true.

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.