How would you expect the H−X−H bond angle to vary in the series H2O, H2S, H2Se ? (Hint: The size of an electron pair domain depends in part on the electronegativity of the central atom.) Rank from largest to smallest angle. To rank items as equivalent, overlap them.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.