Which shows the octet rule?
A: An atom that has 6 electrons in the valence shell except for hydrogen and helium
B: An atom that has 8 electrons in the valence shell except for hydrogen and helium

Determine the expected diffraction angle for the first-order reflection from the (310) set of planes for bcc chromium when monochromatic radiation of wavelength 0.0735 nm is used. the atomic radius for cr is 0.1249 nm.

Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?