About how long did it take our solar system to look the way it does today? 500 thousand years
50 years
50 thousand years
500 million years

Order the following from smallest to largest atom, electron, quark, proton, neutron, molecule, nucleus

How are isotopes of the same element alike?

Achemist who studies water samples did a demonstration of how to test for lead in water. she added a clear solution of potassium iodide to a clear solution of lead nitrate. then a yellow swirling solid formed in the liquid. what is most likely true about the yellow solid?