The Earth's Layers Options

Inner Core

Outer Core

Lithosphere

Mantle

Oceanic Crust

Asthenosphere

Continental Crust

In a closed or isolated system , matter can not be created or destroyed. it can change forms but is conserved true or false

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron