Owhich two elements will be the most alike and why? a. helium (he) and hydrogen (h) b. oxygen (o) and neon (ne) c. lithium (li) and sodium (na)

Anybody wanna ? (picture included? )

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?