Which of these elements is a metal? A Hafnium (Hf)

B Radon (Rn)

C Silicon (Si)

D Sulfur (S)

E Selenium (Se)

A Hafnium

hope this helps

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.