Iron filings could be separated from sand using .
A. a magnet
B. boiling
C. chromatography
D. filtration

The p sub shell can hold up to 8 electrons in an atom. true or false?

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

Give the orbital configuration of the phosphorus (p) atom.