2. Which of the following is the reason that ionization energy generally increases from left to right across the first period of
the periodic table?
(A) As the atomic number increases, the electrons are harder
to remove.
(B) Ionization energy increases as the atomic number
increases in a period.
(C) As the atomic number increases, more electrons are
added to the atoms, thus increasing the electron-electron
repulsions.
(D) As the atomic number increases, more protons in the
nucleus cause an increase in the effective nuclear charge,
making it harder to remove the electrons.

i believe it is a.) released into

explanation:

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.

the awnser is group 12

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.