D
question 19
which statement best describes a major difference between different types of elements?
the atoms of different elements have different numbers of protons and electrons.
only some elements are composed of atoms with electrons.
only some elements have atoms with subatomic particles.
the atoms of different elements have different locations for their nucleus.

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.