What is the estimated effective nuclear charge, z eff, experienced by an electron in a 3p orbital of a chlorine atom?

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³