Mical
Use the periodic table to identify the name or
atomic number for each element below. (Give the
name, not the chemical symbol, for each
element.)
hafnium: atomic number
atomic number 15
atomic number 45
osmium: atomic number
magnesium: atomic number

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.