PLEASE HELP ME How are the electron structures of hydrogen (H) and lithium (Li) similar?

A. They both have 1 electron in an s sublevel.
B. Neither one has any valence electrons.
C. They both have valence electrons in the 1s sublevel.
O D. They both have valence electrons in the first main energy level.

Will mark brainliest 26. which of these statements are true? (3 points) a. gases are compressible b. gases fill their containers completely c. the pressure of a gas is independent of the temperature d. gases have mass e. gases exert pressure f. the pressure of a gas is dependent on the volume g. gas pressure results from the collisions between gas particles h. gases have a definite volume and shape

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Which change to the system wood cause the freely-moving piston to lower?