CAN YALL HELP A MANS OUT FOR A QUESTION? Earth contains distinct layers, including the inner core, outer core, mantle, crust, asthenosphere, and lithosphere. A diagram of Earths layers is provided. Which letter in the diagram identifies the solid layer of Earth which is made up of mostly magma?

A. Crust

B. Mantle

C. Outer Core

D. Inner Core

indium, and thallium have three electrons i think

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.