Which statement best describes an atom? (2 points) protons and neutrons grouped in a specific pattern protons and electrons spread around randomly a group of protons and neutrons that are surrounded by electrons a ball of electrons and neutrons surrounded by protons

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

1) a. water molecule breaks up into hydrogen and oxygen on passing electricity. does this involve breaking intermolecular or intramolecular forces of attraction. explain b. on boiling water changes to water vapor. does this involve breaking intermolecular or intramolecular forces of attraction. explain methanol evaporates faster than water. contrast the intermolecular forces and the vapor pressures of methanol and water?

What’s the physical properties in calcium chloride