Which characteristic of the elements increases as you move across a period from left to right?
A. Year discovered
O B. Metallic nature
O C. Magnetic attraction
D. Atomic number

Atomic number. Search up ptable. It takes you to this AMAZING site where you click on element it tells you literally anything you want to know about it. Hope this help!!

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.

Sun is explosive itself spread 9 planets.earth is 3rd explosive in the solar system about 500 hundred million years ago . first earth became ice age and freezing climate.centre of earth magma. north zone is artic . south is anatric