Each known element be broken down into any simpler substances. fill in the blank

Elements can be described using atoms.  Each element has an atom that corresponds to it and since atoms are made up of even smaller particles you can break up elements in to simpler things.  It is just that the simpler things have no real chemical identity and can't be used. (atoms (and therefore elements) can be broken up into protons, neutrons, and electrons).

I hope this helps.  Let me know if anything is unclear.

cannot be broken because elements are made of atoms an atoms nither be created nor be destroyed.

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.

The correct answer should be "electrons orbit the nucleus in circular motions exactly as shown on the classic bohr model."